CVE catalog

CVE-2026-88386

libsndfile 1.2.2 contains a misaligned memory access…

libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Sep 24, 2026, 12:00:00 AM UTC
Updated: Sep 24, 2026, 9:25:27 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.16% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "libsndfile",
      "status": "vulnerable",
      "release": "sid",
      "version": "1.2.2-4"
    },
    {
      "name": "libsndfile",
      "status": "vulnerable",
      "release": "forky",
      "version": "1.2.2-4"
    },
    {
      "name": "libsndfile",
      "status": "vulnerable",
      "release": "trixie",
      "version": "1.2.2-2+deb13u1"
    },
    {
      "name": "libsndfile",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "1.2.0-1+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1149062,
      "name": "libsndfile",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1149062,
      "name": "libsndfile",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1149062,
      "name": "libsndfile",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1149062,
      "name": "libsndfile",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "1.0.28-4",
        "1.0.28-4ubuntu0.18.04.1",
        "1.0.28-4ubuntu0.18.04.2",
        "1.0.28-4ubuntu0.18.04.2+esm1",
        "1.0.28-4ubuntu0.18.04.2+esm2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    },
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "1.0.28-6",
        "1.0.28-7",
        "1.0.28-7ubuntu0.1",
        "1.0.28-7ubuntu0.2",
        "1.0.28-7ubuntu0.3"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    },
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "1.0.31-2",
        "1.0.31-2build1",
        "1.0.31-2ubuntu0.1",
        "1.0.31-2ubuntu0.2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    },
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "1.2.2-1",
        "1.2.2-1ubuntu2",
        "1.2.2-1ubuntu3",
        "1.2.2-1ubuntu4",
        "1.2.2-1ubuntu5",
        "1.2.2-1ubuntu5.24.04.1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    },
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "26.10",
      "versions": [
        "1.2.2-4"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    },
    {
      "name": "libsndfile",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "26.04",
      "versions": [
        "1.2.2-3",
        "1.2.2-4"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-88386"
    }
  ]
}

[Debian bug #1149062]

Publisher notes

[trixie] libsndfile: Minor issue [bookworm] libsndfile: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libsndfile1]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.0-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12
- 1.2.0-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12
[libsndfile1-dev]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.0-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12
- 1.2.0-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12
[sndfile-programs]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.0-1+deb12u1 · amd64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12
- 1.2.0-1+deb12u1 · arm64 · bookworm
  Affected
  nvd · libsndfile · debian · bookworm; nvd · libsndfile · debian · 12

[Debian 13 (Trixie)]

[libsndfile1]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.2-2+deb13u1 · amd64 · trixie
  Affected
  nvd · libsndfile · debian · 13
- 1.2.2-2+deb13u1 · arm64 · trixie
  Affected
  nvd · libsndfile · debian · 13
[libsndfile1-dev]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.2-2+deb13u1 · amd64 · trixie
  Affected
  nvd · libsndfile · debian · 13
- 1.2.2-2+deb13u1 · arm64 · trixie
  Affected
  nvd · libsndfile · debian · 13
[sndfile-programs]Unknown
Source package: [libsndfile]
Details (2)
- 1.2.2-2+deb13u1 · amd64 · trixie
  Affected
  nvd · libsndfile · debian · 13
- 1.2.2-2+deb13u1 · arm64 · trixie
  Affected
  nvd · libsndfile · debian · 13

Observed: Oct 25, 2026, 5:09:41 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]