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CVE-2026-85732 (GCVE-0-2026-85732)

Vulnerability from nvd – Published: 2026-09-16 16:22 – Updated: 2026-09-16 17:29

Title

oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.

Severity

4.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 17:29 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/31…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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}

CVE-2026-85731 (GCVE-0-2026-85731)

Vulnerability from nvd – Published: 2026-09-16 16:24 – Updated: 2026-09-16 17:25

Title

oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets lexically, resolveRelToBase skips its parent-symlink walk for root-level entries, and writeFile follows a terminal symlink when opening a regular file. A malicious archive can therefore create a symlink chain whose lexical target remains inside the extraction root but whose resolved target is an attacker-selected absolute path, then overwrite that target with a same-named regular-file entry even when AllowPathTraversalOnWrite is false. Pulling an attacker-controlled artifact can create or overwrite any file writable by the process and may lead to code execution. This issue is fixed in version 2.6.2.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 17:24 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/ad…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-55588 (GCVE-0-2026-55588)

Vulnerability from nvd – Published: 2026-08-25 20:32 – Updated: 2026-08-27 14:35

Title

ORAS CLI: Cyclic Referrer Graph Can Cause Unbounded Recursion and Resource Consumption

Summary

ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries. In ORAS CLI versions up to and including 1.3.2, the recursive referrer traversal does not track visited descriptors, so a malicious OCI registry that returns a cyclic referrer graph causes unbounded recursion and memory growth. This affects oras discover, whose recursive traversal is enabled by default because the --depth option defaults to 0 (unlimited), as well as the recursive referrer counting used by the oras backup and oras restore workflows. A cyclic graph can be as simple as A referring to B and B referring back to A. A malicious registry can use this to cause a client-side denial of service, exhausting CPU and memory and hanging automation or CI/CD pipelines that run ORAS against untrusted registry metadata. The vulnerability does not extend to code execution, artifact substitution, or integrity bypass. This issue has been fixed in version 1.3.3.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 13:52 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-674 - Uncontrolled Recursion
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/oras-project/oras/security/adv…	x_refsource_CONFIRM
https://github.com/oras-project/oras/commit/440eb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras	Affected: < 1.3.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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                "id": "CVE-2026-55588",
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CVE-2026-50163 (GCVE-0-2026-50163)

Vulnerability from nvd – Published: 2026-07-17 19:36 – Updated: 2026-07-20 15:01

Title

oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 15:00 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/pull/1232	x_refsource_MISC
https://github.com/oras-project/oras-go/commit/c4…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-50163",
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            "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp"
          }
        ],
        "title": "CISA ADP Vulnrichment"
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          "lang": "en",
          "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link(\"victim.secret\", \"\u003cextract_base\u003e/payload.tar.gz/evil_cwd_link\") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname=\"victim.secret\" with io.deis.oras.content.unpack: \"true\", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2."
        }
      ],
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "confidentialityImpact": "HIGH",
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            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
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          }
        }
      ],
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              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
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          "name": "https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp",
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            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-fxhp-mv3v-67qp"
        },
        {
          "name": "https://github.com/oras-project/oras-go/pull/1232",
          "tags": [
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          ],
          "url": "https://github.com/oras-project/oras-go/pull/1232"
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          "name": "https://github.com/oras-project/oras-go/commit/c463c654ab3ef34422c1764cd619806cebf20451",
          "tags": [
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          "name": "https://github.com/oras-project/oras-go/releases/tag/v2.6.2",
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      ],
      "source": {
        "advisory": "GHSA-fxhp-mv3v-67qp",
        "discovery": "UNKNOWN"
      },
      "title": "oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction"
    }
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}

CVE-2026-50162 (GCVE-0-2026-50162)

Vulnerability from nvd – Published: 2026-07-17 19:39 – Updated: 2026-07-20 18:18

Title

oras-go: file store write outside workingDir via symlink traversal

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 18:18 UTC

CWE

CWE-73 - External Control of File Name or Path

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/cc…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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                "id": "CVE-2026-50162",
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          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv"
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    "state": "PUBLISHED"
  },
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}

CVE-2026-50151 (GCVE-0-2026-50151)

Vulnerability from nvd – Published: 2026-07-17 19:41 – Updated: 2026-07-20 13:52

Title

oras-go: credential forwarding via unvalidated Location header in blob upload

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller's credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 13:52 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/pull/1152	x_refsource_MISC
https://github.com/oras-project/oras-go/commit/46…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50151",
                "options": [
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                    "Exploitation": "poc"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
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        }
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          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7"
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      "title": "oras-go: credential forwarding via unvalidated Location header in blob upload"
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}

CVE-2026-48978 (GCVE-0-2026-48978)

Vulnerability from nvd – Published: 2026-07-17 19:34 – Updated: 2026-07-21 02:06

Title

oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry's WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1.

Severity

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-21 02:06 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)
CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/7a…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48978",
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CVE-2026-85731 (GCVE-0-2026-85731)

Vulnerability from cvelistv5 – Published: 2026-09-16 16:24 – Updated: 2026-09-16 17:25

Title

oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets lexically, resolveRelToBase skips its parent-symlink walk for root-level entries, and writeFile follows a terminal symlink when opening a regular file. A malicious archive can therefore create a symlink chain whose lexical target remains inside the extraction root but whose resolved target is an attacker-selected absolute path, then overwrite that target with a same-named regular-file entry even when AllowPathTraversalOnWrite is false. Pulling an attacker-controlled artifact can create or overwrite any file writable by the process and may lead to code execution. This issue is fixed in version 2.6.2.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 17:24 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/ad…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-85732 (GCVE-0-2026-85732)

Vulnerability from cvelistv5 – Published: 2026-09-16 16:22 – Updated: 2026-09-16 17:29

Title

oras-go: Blind SSRF via unvalidated Link header URL in pagination allows internal network probing

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.

Severity

4.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 17:29 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/31…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

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CVE-2026-55588 (GCVE-0-2026-55588)

Vulnerability from cvelistv5 – Published: 2026-08-25 20:32 – Updated: 2026-08-27 14:35

Title

ORAS CLI: Cyclic Referrer Graph Can Cause Unbounded Recursion and Resource Consumption

Summary

ORAS (OCI Registry As Storage) is a CLI and library for managing artifacts in OCI registries. In ORAS CLI versions up to and including 1.3.2, the recursive referrer traversal does not track visited descriptors, so a malicious OCI registry that returns a cyclic referrer graph causes unbounded recursion and memory growth. This affects oras discover, whose recursive traversal is enabled by default because the --depth option defaults to 0 (unlimited), as well as the recursive referrer counting used by the oras backup and oras restore workflows. A cyclic graph can be as simple as A referring to B and B referring back to A. A malicious registry can use this to cause a client-side denial of service, exhausting CPU and memory and hanging automation or CI/CD pipelines that run ORAS against untrusted registry metadata. The vulnerability does not extend to code execution, artifact substitution, or integrity bypass. This issue has been fixed in version 1.3.3.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 13:52 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-674 - Uncontrolled Recursion
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/oras-project/oras/security/adv…	x_refsource_CONFIRM
https://github.com/oras-project/oras/commit/440eb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras	Affected: < 1.3.3

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-50151 (GCVE-0-2026-50151)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:41 – Updated: 2026-07-20 13:52

Title

oras-go: credential forwarding via unvalidated Location header in blob upload

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller's credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 13:52 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/pull/1152	x_refsource_MISC
https://github.com/oras-project/oras-go/commit/46…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                  {
                    "Technical Impact": "partial"
                  }
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                "timestamp": "2026-07-20T13:52:00.588088Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-20T13:52:07.476Z",
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            ],
            "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7"
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        ],
        "title": "CISA ADP Vulnrichment"
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      "affected": [
        {
          "product": "oras-go",
          "vendor": "oras-project",
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            {
              "status": "affected",
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            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller\u0027s credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1."
        }
      ],
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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          "descriptions": [
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          ],
          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7"
        },
        {
          "name": "https://github.com/oras-project/oras-go/pull/1152",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/pull/1152"
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          "name": "https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991",
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          "url": "https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991"
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        {
          "name": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1",
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        }
      ],
      "source": {
        "advisory": "GHSA-jxpm-75mh-9fp7",
        "discovery": "UNKNOWN"
      },
      "title": "oras-go: credential forwarding via unvalidated Location header in blob upload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

CVE-2026-50162 (GCVE-0-2026-50162)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:39 – Updated: 2026-07-20 18:18

Title

oras-go: file store write outside workingDir via symlink traversal

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 18:18 UTC

CWE

CWE-73 - External Control of File Name or Path

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/cc…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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                "id": "CVE-2026-50162",
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CVE-2026-50163 (GCVE-0-2026-50163)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:36 – Updated: 2026-07-20 15:01

Title

oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 15:00 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/pull/1232	x_refsource_MISC
https://github.com/oras-project/oras-go/commit/c4…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50163",
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        "title": "CISA ADP Vulnrichment"
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          "product": "oras-go",
          "vendor": "oras-project",
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          "lang": "en",
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CVE-2026-48978 (GCVE-0-2026-48978)

Vulnerability from cvelistv5 – Published: 2026-07-17 19:34 – Updated: 2026-07-21 02:06

Title

oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens

Summary

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry's WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1.

Severity

2.1 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-21 02:06 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)
CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/oras-project/oras-go/security/…	x_refsource_CONFIRM
https://github.com/oras-project/oras-go/commit/7a…	x_refsource_MISC
https://github.com/oras-project/oras-go/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
oras-project	oras-go	Affected: < 2.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-48978",
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      "providerMetadata": {
        "dateUpdated": "2026-07-17T19:34:53.690Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w"
        },
        {
          "name": "https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae56930fe764",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae56930fe764"
        },
        {
          "name": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1"
        }
      ],
      "source": {
        "advisory": "GHSA-xf85-363p-868w",
        "discovery": "UNKNOWN"
      },
      "title": "oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48978",
    "datePublished": "2026-07-17T19:34:53.690Z",
    "dateReserved": "2026-05-26T23:26:07.974Z",
    "dateUpdated": "2026-07-21T02:06:49.654Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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14 vulnerabilities by oras-project

CVE-2026-85732 (GCVE-0-2026-85732)

CVE-2026-85731 (GCVE-0-2026-85731)

CVE-2026-55588 (GCVE-0-2026-55588)

CVE-2026-50163 (GCVE-0-2026-50163)

CVE-2026-50162 (GCVE-0-2026-50162)

CVE-2026-50151 (GCVE-0-2026-50151)

CVE-2026-48978 (GCVE-0-2026-48978)

CVE-2026-85731 (GCVE-0-2026-85731)

CVE-2026-85732 (GCVE-0-2026-85732)

CVE-2026-55588 (GCVE-0-2026-55588)

CVE-2026-50151 (GCVE-0-2026-50151)

CVE-2026-50162 (GCVE-0-2026-50162)

CVE-2026-50163 (GCVE-0-2026-50163)

CVE-2026-48978 (GCVE-0-2026-48978)