Vulnerability-Lookup

OESA-2026-3733 (CVE-2026-62960)

Vulnerability from osv_openeuler – Published: 2026-09-14 16:33 – Updated: 2026-09-14 16:33 – Source website

Summary

git security update

Details

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows.

Security Fix(es):

Git for Windows is the Windows port of Git. Prior to 2.55.0.windows.4, a malicious remote Git server can advertise a bundle URI that reaches transport_get_remote_bundle_uri(), fetch_bundle_uri_internal(), and copy_uri_to_file() in bundle-uri.c during clone or fetch when transfer.bundleuri=true. Non-HTTP(S) values are treated as local filesystem paths, and file URI prefixes are removed, so a bare UNC path or file URI targeting an attacker-controlled share causes Windows to initiate an outbound SMB connection. This can expose NTLM authentication material to the attacker-selected host. This issue is fixed in version 2.55.0.windows.4.(CVE-2026-62960)

Severity

7.4 (High)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-62960	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "git-2.54.0-3.oe2403sp4.aarch64.rpm",
          "git-core-2.54.0-3.oe2403sp4.aarch64.rpm",
          "git-daemon-2.54.0-3.oe2403sp4.aarch64.rpm",
          "git-debuginfo-2.54.0-3.oe2403sp4.aarch64.rpm",
          "git-debugsource-2.54.0-3.oe2403sp4.aarch64.rpm"
        ],
        "noarch": [
          "git-email-2.54.0-3.oe2403sp4.noarch.rpm",
          "git-gui-2.54.0-3.oe2403sp4.noarch.rpm",
          "git-help-2.54.0-3.oe2403sp4.noarch.rpm",
          "git-svn-2.54.0-3.oe2403sp4.noarch.rpm",
          "git-web-2.54.0-3.oe2403sp4.noarch.rpm",
          "gitk-2.54.0-3.oe2403sp4.noarch.rpm",
          "perl-Git-2.54.0-3.oe2403sp4.noarch.rpm",
          "perl-Git-SVN-2.54.0-3.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "git-2.54.0-3.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "git-2.54.0-3.oe2403sp4.x86_64.rpm",
          "git-core-2.54.0-3.oe2403sp4.x86_64.rpm",
          "git-daemon-2.54.0-3.oe2403sp4.x86_64.rpm",
          "git-debuginfo-2.54.0-3.oe2403sp4.x86_64.rpm",
          "git-debugsource-2.54.0-3.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "git",
        "purl": "pkg:rpm/openEuler/git\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.54.0-3.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows.\r\n\r\nSecurity Fix(es):\n\nGit for Windows is the Windows port of Git. Prior to 2.55.0.windows.4, a malicious remote Git server can advertise a bundle URI that reaches transport_get_remote_bundle_uri(), fetch_bundle_uri_internal(), and copy_uri_to_file() in bundle-uri.c during clone or fetch when transfer.bundleuri=true. Non-HTTP(S) values are treated as local filesystem paths, and file URI prefixes are removed, so a bare UNC path or file URI targeting an attacker-controlled share causes Windows to initiate an outbound SMB connection. This can expose NTLM authentication material to the attacker-selected host. This issue is fixed in version 2.55.0.windows.4.(CVE-2026-62960)",
  "id": "OESA-2026-3733",
  "modified": "2026-09-14T16:33:50Z",
  "published": "2026-09-14T16:33:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3733"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62960"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "git security update",
  "upstream": [
    "CVE-2026-62960"
  ]
}

CVE-2026-62960 (GCVE-0-2026-62960)

Vulnerability from cvelistv5 – Published: 2026-08-21 20:05 – Updated: 2026-08-26 17:38

Title

Git for Windows: Server-advertised bundle-uri can trigger outbound SMB callbacks via UNC and file:// paths on Windows

Summary

Severity

7.4 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 17:37 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-610 - Externally Controlled Reference to a Resource in Another Sphere

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/git-for-windows/git/security/a…	x_refsource_CONFIRM
https://github.com/git-for-windows/git/commit/a93…	x_refsource_MISC
https://github.com/git-for-windows/git/releases/t…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
git-for-windows	git	Affected: < 2.55.0.windows.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-62960",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-26T17:37:51.493442Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-26T17:38:14.501Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/git-for-windows/git/security/advisories/GHSA-xrpg-8j9v-v282"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "git",
          "vendor": "git-for-windows",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.55.0.windows.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Git for Windows is the Windows port of Git. Prior to 2.55.0.windows.4, a malicious remote Git server can advertise a bundle URI that reaches transport_get_remote_bundle_uri(), fetch_bundle_uri_internal(), and copy_uri_to_file() in bundle-uri.c during clone or fetch when transfer.bundleuri=true. Non-HTTP(S) values are treated as local filesystem paths, and file URI prefixes are removed, so a bare UNC path or file URI targeting an attacker-controlled share causes Windows to initiate an outbound SMB connection. This can expose NTLM authentication material to the attacker-selected host. This issue is fixed in version 2.55.0.windows.4."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-610",
              "description": "CWE-610: Externally Controlled Reference to a Resource in Another Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T20:05:45.099Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/git-for-windows/git/security/advisories/GHSA-xrpg-8j9v-v282",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/git-for-windows/git/security/advisories/GHSA-xrpg-8j9v-v282"
        },
        {
          "name": "https://github.com/git-for-windows/git/commit/a93524749d7806870fd2b4b00a3812da1d6e5f4a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/git-for-windows/git/commit/a93524749d7806870fd2b4b00a3812da1d6e5f4a"
        },
        {
          "name": "https://github.com/git-for-windows/git/releases/tag/v2.55.0.windows.4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/git-for-windows/git/releases/tag/v2.55.0.windows.4"
        }
      ],
      "source": {
        "advisory": "GHSA-xrpg-8j9v-v282",
        "discovery": "UNKNOWN"
      },
      "title": "Git for Windows: Server-advertised bundle-uri can trigger outbound SMB callbacks via UNC and file:// paths on Windows"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-62960",
    "datePublished": "2026-08-21T20:05:45.099Z",
    "dateReserved": "2026-07-14T22:32:17.732Z",
    "dateUpdated": "2026-08-26T17:38:14.501Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2026-3733 (CVE-2026-62960)

CVE-2026-62960 (GCVE-0-2026-62960)

Tags

Sightings

Nomenclature

Related by attack behaviour