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Medium

libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker

Type: advisorySources: OSV

libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-111131
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 08:38 UTC · Revision 1

Source evidence

libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker

core-osv · Original source

Published 15 Oct 2026, 18:57 UTC

libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.

osv:CVE-2026-111131
Complete source record
{
  "id": "1fd8453428cc5410ae83b2f02319dad53eb0b4ee21ee4739417ab0472eb0e86f",
  "url": "https://osv.dev/vulnerability/CVE-2026-111131",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker",
    "summary": "libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.",
    "evidence": "osv:CVE-2026-111131",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-111131",
      "aliases": [
        "CVE-2026-111131"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libxmp/libxmp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.7.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.7.4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "libxmp-4.7.4",
            "libxmp-4.7.3",
            "libxmp-4.7.2",
            "libxmp-4.7.1",
            "libxmp-4.7.0",
            "libxmp-4.6.3",
            "libxmp-4.6.2",
            "libxmp-4.6.1",
            "libxmp-4.6.0",
            "libxmp-4.5.0",
            "libxmp-4.4.1",
            "libxmp-4.4.0",
            "libxmp-4.3.13",
            "libxmp-4.3.12",
            "libxmp-4.3.11",
            "libxmp-4.3.10",
            "libxmp-4.3.9",
            "libxmp-4.3.8",
            "libxmp-4.3.7",
            "libxmp-4.3.6",
            "libxmp-4.3.5",
            "libxmp-4.3.4",
            "libxmp-4.3.3",
            "libxmp-4.3.2",
            "libxmp-4.3.1",
            "libxmp-4.3.0",
            "libxmp-4.2.8",
            "libxmp-4.2.7",
            "libxmp-4.2.6",
            "libxmp-4.2.5",
            "libxmp-4.2.4",
            "libxmp-4.2.3",
            "libxmp-4.2.2",
            "libxmp-4.2.1",
            "libxmp-4.2.0",
            "android-3.6.2",
            "libxmp-4.1.5",
            "xmp-4.0.6",
            "libxmp-4.1.4",
            "xmp-4.0.5",
            "libxmp-4.1.3",
            "libxmp-4.1.2",
            "xmp-4.0.4",
            "libxmp-4.1.1",
            "libxmp-4.1.0",
            "xmp-4.0.3",
            "android-3.6.0",
            "api-4.0",
            "xmp-4.0.2",
            "libxmp-4.0.4",
            "android-3.5.0",
            "libxmp-4.0.3",
            "libxmp-4.0.2",
            "android-3.4.4",
            "xmp-4.0.1",
            "libxmp-4.0.1",
            "libxmp-4.0.0",
            "xmp-4.0.0",
            "android-3.4.3",
            "android-3.4.2",
            "android-3.4.1",
            "android-3.4.0",
            "android-3.3.0",
            "xmp-3.9.1",
            "libxmp-3.9.4",
            "android-3.2.1",
            "android-3.2.0",
            "android-3.1.2",
            "android-3.1.1",
            "libxmp-3.9.1",
            "xmp-3.9.0",
            "libxmp-3.9.0",
            "android-3.0.2",
            "android-3.0.1",
            "android-3.0.0",
            "android-2.9.2",
            "android-2.9.1",
            "android-2.9.0",
            "3.5.0",
            "android-2.4.0",
            "android-2.3.0",
            "android-2.2.0",
            "3.4.1",
            "3.4.0",
            "android-2.1.1",
            "android-2.1.0",
            "android-2.0.3",
            "android-2.0.2",
            "android-2.0.1",
            "android-2.0.0",
            "android-1.9.5",
            "3.3.0",
            "android-1.9.4",
            "android-1.9.3",
            "android-1.9.2",
            "android-1.9.1",
            "android-1.9",
            "android-1.2",
            "android-1.1",
            "android-1.0.1",
            "3.2.0",
            "3.1.0",
            "3.0.0",
            "3.0.0-pre1",
            "2.7.1",
            "2.7.0-win32-amigaconf.patch",
            "2.7.0",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0",
            "git_import",
            "2.5.1",
            "import",
            "2.5.0",
            "2.4.1",
            "2.4.0",
            "2.3.2",
            "2.3.1",
            "2.3.0",
            "2.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111131.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.085600305Z",
      "provider": "osv",
      "references": [
        "https://github.com",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111131.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111131",
        "https://www.vulncheck.com/advisories/libxmp-through-4.7.4-stack-out-of-bounds-read-via-p61a-depacker",
        "https://github.com/libxmp/libxmp",
        "https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116",
        "https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641",
        "https://hackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-read"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111131.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111131",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493915,
  "published_at": "2026-10-15T18:57:26.487+00:00"
}