Vulnerability-Lookup

SUSE-SU-2026:2782-1

Vulnerability from csaf_suse - Published: 2026-07-06 18:01 - Updated: 2026-09-17 16:28

Summary

Security update for perl-Cpanel-JSON-XS

Severity

Important

Notes

Title of the patch: Security update for perl-Cpanel-JSON-XS

Description of the patch: This update for perl-Cpanel-JSON-XS fixes the following issues - CVE-2026-9334: type confusion via duplicate object keys when `dupkeys_as_arrayref` is enabled (bsc#1267546). - CVE-2026-9516: denial of service via UTF-8 BOM prefixed input when a decode filter callback throws (bsc#1267547).

Patchnames: SUSE-2026-2782,SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-2782

CVE-2026-9334

8.1 (High)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-9516

7.5 (High)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-9334

Threats

Impact important

References

12 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-updates/2026…	self
https://bugzilla.suse.com/1267546	self
https://bugzilla.suse.com/1267547	self
https://www.suse.com/security/cve/CVE-2026-9334/	self
https://www.suse.com/security/cve/CVE-2026-9516/	self
https://www.suse.com/security/cve/CVE-2026-9334	external
https://bugzilla.suse.com/1267546	external
https://www.suse.com/security/cve/CVE-2026-9516	external
https://bugzilla.suse.com/1267547	external

JSON

To clipboard

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          "text": "Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled.\n\ndecode_hv() collapses duplicate object keys into an array reference under dupkeys_as_arrayref. The branch reached for a duplicate key tests `SvTYPE (old_value) != SVt_RV \u0026\u0026 SvTYPE (SvRV (old_value)) != SVt_PVAV`, which evaluates SvRV(old_value) before establishing that old_value is a reference. When the existing value is a plain scalar rather than an array reference, a non-reference scalar is dereferenced as a reference.\n\nA caller decoding untrusted JSON with dupkeys_as_arrayref enabled is crashed, and the incompatible access follows a pointer taken from attacker controlled scalar contents.",
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        {
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          "product_ids": [
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            "SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.x86_64"
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          "text": "https://www.suse.com/security/cve/CVE-2026-9516"
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          "category": "general",
          "text": "Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws.\n\nTo skip a leading 3-byte UTF-8 BOM, decode_json() advances the input scalar\u0027s string pointer past the mark with SvPV_set() and restores it only on the normal return path. When decoding aborts through a Perl exception, for example a filter_json_object callback that croaks, the restore is skipped and the scalar is left with its string pointer offset into its own buffer and a shortened length.\n\nWhen that scalar is later freed, the allocator receives an invalid pointer and the interpreter aborts. A single BOM prefixed document decoded with a throwing filter callback crashes any caller.",
          "title": "CVE description"
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            "SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.s390x",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.x86_64"
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            "SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.s390x",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-0:4.380.0-150700.3.6.1.x86_64"
          ]
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          "category": "impact",
          "date": "2026-07-06T18:01:58Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-9516"
    }
  ]
}

CVE-2026-9334 (GCVE-0-2026-9334)

Vulnerability from cvelistv5 – Published: 2026-06-03 00:15 – Updated: 2026-06-03 17:29

Title

Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled

Summary

Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled. decode_hv() collapses duplicate object keys into an array reference under dupkeys_as_arrayref. The branch reached for a duplicate key tests `SvTYPE (old_value) != SVt_RV && SvTYPE (SvRV (old_value)) != SVt_PVAV`, which evaluates SvRV(old_value) before establishing that old_value is a reference. When the existing value is a plain scalar rather than an array reference, a non-reference scalar is dereferenced as a reference. A caller decoding untrusted JSON with dupkeys_as_arrayref enabled is crashed, and the incompatible access follows a pointer taken from attacker controlled scalar contents.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-03 17:29 UTC

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

CPANSec redhat root Scorecard

References

3 references

URL	Tags
https://github.com/rurban/Cpanel-JSON-XS/commit/1…	patch
https://metacpan.org/release/RURBAN/Cpanel-JSON-X…	release-notes
http://www.openwall.com/lists/oss-security/2026/06/03/4

Impacted products

1 product

Vendor	Product	Version
RURBAN	Cpanel::JSON::XS	Affected: 0 , < 4.41 (custom)

Show details on NVD website

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          {
            "url": "http://www.openwall.com/lists/oss-security/2026/06/03/4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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          "value": "Upgrade to Cpanel::JSON::XS 4.41 or later."
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          "lang": "en",
          "time": "2026-02-24T00:00:00.000Z",
          "value": "Issue reported."
        },
        {
          "lang": "en",
          "time": "2026-05-27T00:00:00.000Z",
          "value": "Version 4.41 released with fix."
        },
        {
          "lang": "en",
          "time": "2026-05-28T00:00:00.000Z",
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      "title": "Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled",
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CVE-2026-9516 (GCVE-0-2026-9516)

Vulnerability from cvelistv5 – Published: 2026-06-03 00:15 – Updated: 2026-06-03 15:58

Title

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws

Summary

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decode_json() advances the input scalar's string pointer past the mark with SvPV_set() and restores it only on the normal return path. When decoding aborts through a Perl exception, for example a filter_json_object callback that croaks, the restore is skipped and the scalar is left with its string pointer offset into its own buffer and a shortened length. When that scalar is later freed, the allocator receives an invalid pointer and the interpreter aborts. A single BOM prefixed document decoded with a throwing filter callback crashes any caller.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-03 15:58 UTC

CWE

CWE-763 - Release of Invalid Pointer or Reference
CWE-755 - Improper Handling of Exceptional Conditions

Assigner

CPANSec redhat root Scorecard

References

3 references

URL	Tags
https://github.com/rurban/Cpanel-JSON-XS/commit/d…	patch
https://metacpan.org/release/RURBAN/Cpanel-JSON-X…	release-notes
http://www.openwall.com/lists/oss-security/2026/06/03/5

Impacted products

1 product

Vendor	Product	Version
RURBAN	Cpanel::JSON::XS	Affected: 0 , < 4.41 (custom)

Show details on NVD website

JSON

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          "dateUpdated": "2026-06-03T09:35:39.521Z",
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          {
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          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
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                "version": "2.0.3"
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          "dateUpdated": "2026-06-03T15:58:49.426Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Cpanel-JSON-XS",
          "product": "Cpanel::JSON::XS",
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          ],
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            }
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        {
          "lang": "en",
          "value": "Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws.\n\nTo skip a leading 3-byte UTF-8 BOM, decode_json() advances the input scalar\u0027s string pointer past the mark with SvPV_set() and restores it only on the normal return path. When decoding aborts through a Perl exception, for example a filter_json_object callback that croaks, the restore is skipped and the scalar is left with its string pointer offset into its own buffer and a shortened length.\n\nWhen that scalar is later freed, the allocator receives an invalid pointer and the interpreter aborts. A single BOM prefixed document decoded with a throwing filter callback crashes any caller."
        }
      ],
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            {
              "cweId": "CWE-763",
              "description": "CWE-763 Release of Invalid Pointer or Reference",
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              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-755",
              "description": "CWE-755 Improper Handling of Exceptional Conditions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
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          "url": "https://github.com/rurban/Cpanel-JSON-XS/commit/dfe1b41a36caba51dc12a2917fe50285d1ffaa7b.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.41/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to Cpanel::JSON::XS 4.41 or later."
        }
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      "source": {
        "discovery": "UNKNOWN"
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          "time": "2026-05-18T00:00:00.000Z",
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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.

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Action not permitted

SUSE-SU-2026:2782-1

CVE-2026-9334 (GCVE-0-2026-9334)

CVE-2026-9516 (GCVE-0-2026-9516)

Tags

Sightings

Nomenclature

Related by attack behaviour