CVE catalog

CVE-2026-22891

A heap-based buffer overflow vulnerability exists in…

A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Branch (db9a9a63). A specially crafted Intan CLP file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity: Critical · CVSS 9.8
Published: Mar 3, 2026, 3:16:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.61% · Oct 27, 2026

Projects and upstream resources

[biosig][Source-reported homepage]

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": "biosig",
      "status": "fixed",
      "release": "sid",
      "version": "3.9.5-1"
    },
    {
      "name": "biosig",
      "status": "fixed",
      "release": "forky",
      "version": "3.9.5-1"
    },
    {
      "name": "biosig",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.9.0-1"
    },
    {
      "name": "biosig",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "2.5.0-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1130889,
      "name": "biosig",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.9.5-1"
    },
    {
      "bug": 1130889,
      "name": "biosig",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.9.5-1"
    },
    {
      "bug": 1130889,
      "name": "biosig",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1130889,
      "name": "biosig",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "biosig",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    },
    {
      "name": "biosig",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "biosig-tools",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "libbiosig-dev",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "libbiosig3",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "octave-biosig",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "python3-biosig",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.6.0-1ubuntu1+esm1",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.6.0-1ubuntu1+esm1"
    },
    {
      "name": "biosig",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.0-1ubuntu0.1~esm1"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "3.9.0-1",
        "3.9.0-1build1",
        "3.9.0-1build2",
        "3.9.0-1build3"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.9.0-1ubuntu0.1~esm1",
      "provider_record_id": "UBUNTU-CVE-2026-22891"
    },
    {
      "name": "biosig",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "25.10",
      "versions": [
        "2.6.1-1build3",
        "3.9.0-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-22891"
    }
  ]
}

[Debian bug #1130889]

Publisher notes

[trixie] biosig: Minor issue [bookworm] biosig: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[biosig-tools]Unknown
Source package: [biosig]
Details (2)
- 2.5.0-1+b1 · amd64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
- 2.5.0-1+b1 · arm64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
[libbiosig3]Unknown
Source package: [biosig]
Details (2)
- 2.5.0-1+b1 · amd64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
- 2.5.0-1+b1 · arm64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
[libbiosig-dev]Unknown
Source package: [biosig]
Details (2)
- 2.5.0-1+b1 · amd64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
- 2.5.0-1+b1 · arm64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
[octave-biosig]Unknown
Source package: [biosig]
Details (2)
- 2.5.0-1+b1 · amd64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
- 2.5.0-1+b1 · arm64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
[python3-biosig]Unknown
Source package: [biosig]
Details (2)
- 2.5.0-1+b1 · amd64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12
- 2.5.0-1+b1 · arm64 · bookworm
  Affected
  nvd · biosig · debian · bookworm; nvd · biosig · debian · 12

[Debian 13 (Trixie)]

[biosig-tools]Unknown
Source package: [biosig]
Details (2)
- 3.9.0-1 · amd64 · trixie
  Affected
  nvd · biosig · debian · 13
- 3.9.0-1 · arm64 · trixie
  Affected
  nvd · biosig · debian · 13
[libbiosig3]Unknown
Source package: [biosig]
Details (2)
- 3.9.0-1 · amd64 · trixie
  Affected
  nvd · biosig · debian · 13
- 3.9.0-1 · arm64 · trixie
  Affected
  nvd · biosig · debian · 13
[libbiosig-dev]Unknown
Source package: [biosig]
Details (2)
- 3.9.0-1 · amd64 · trixie
  Affected
  nvd · biosig · debian · 13
- 3.9.0-1 · arm64 · trixie
  Affected
  nvd · biosig · debian · 13
[octave-biosig]Unknown
Source package: [biosig]
Details (2)
- 3.9.0-1 · amd64 · trixie
  Affected
  nvd · biosig · debian · 13
- 3.9.0-1 · arm64 · trixie
  Affected
  nvd · biosig · debian · 13
[python3-biosig]Unknown
Source package: [biosig]
Details (2)
- 3.9.0-1 · amd64 · trixie
  Affected
  nvd · biosig · debian · 13
- 3.9.0-1 · arm64 · trixie
  Affected
  nvd · biosig · debian · 13

Observed: Oct 24, 2026, 12:38:13 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Ubuntu Security Notices (USN)]