CVE catalog

CVE-2026-2100

A flaw was found in p11-kit. A remote attacker could…

A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Feb 6, 2026, 8:08:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.31% · 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": "p11-kit",
      "status": "fixed",
      "release": "sid",
      "version": "0.26.5-1"
    },
    {
      "name": "p11-kit",
      "status": "fixed",
      "release": "forky",
      "version": "0.26.5-1"
    },
    {
      "name": "p11-kit",
      "status": "not affected",
      "release": "trixie",
      "version": "0.25.5-3"
    },
    {
      "name": "p11-kit",
      "status": "not affected",
      "release": "bookworm",
      "version": "0.24.1-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "p11-kit",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "0.26.2-2"
    },
    {
      "bug": null,
      "name": "p11-kit",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "0.26.2-2"
    },
    {
      "bug": null,
      "name": "p11-kit",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "p11-kit",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": [
    {
      "name": "p11-kit",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "hardened_images",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "enterprise_linux",
      "ecosystem": "cpe",
      "fixed_version": ""
    },
    {
      "name": "p11-kit",
      "ecosystem": "cpe",
      "fixed_version": "0"
    },
    {
      "name": "p11-kit",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-2100"
    },
    {
      "name": "hardened_images",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-2100"
    },
    {
      "name": "enterprise_linux",
      "ranges": [],
      "ecosystem": "cpe",
      "fixed_version": "",
      "provider_record_id": "NVD-CVE-2026-2100"
    },
    {
      "name": "p11-kit",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.2-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "0.26.2-r0",
      "provider_record_id": "ALPINE-CVE-2026-2100"
    },
    {
      "name": "p11-kit",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.2-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "0.26.2-r0",
      "provider_record_id": "ALPINE-CVE-2026-2100"
    },
    {
      "name": "p11-kit",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.2-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "0.26.2-r0",
      "provider_record_id": "ALPINE-CVE-2026-2100"
    },
    {
      "name": "p11-kit",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.2-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "0.26.2-r0",
      "provider_record_id": "ALPINE-CVE-2026-2100"
    },
    {
      "name": "p11-kit",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.2-1.1"
            }
          ]
        }
      ],
      "release": "tumbleweed",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "0.26.2-1.1",
      "provider_record_id": "OPENSUSE-SU-2026:10169-1"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libp11-kit0]Unknown
Source package: [p11-kit]
Details (2)
- 0.24.1-2 · amd64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
- 0.24.1-2 · arm64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
[libp11-kit-dev]Unknown
Source package: [p11-kit]
Details (2)
- 0.24.1-2 · amd64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
- 0.24.1-2 · arm64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
[p11-kit]Unknown
Details (2)
- 0.24.1-2 · amd64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
- 0.24.1-2 · arm64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
[p11-kit-doc]Unknown
Source package: [p11-kit]
Details (2)
- 0.24.1-2 · all · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
- 0.24.1-2 · all · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
[p11-kit-modules]Unknown
Source package: [p11-kit]
Details (2)
- 0.24.1-2 · amd64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm
- 0.24.1-2 · arm64 · bookworm
  Not affected
  nvd · p11-kit · debian · bookworm

[openSUSE Tumbleweed]

[libp11-kit0]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[libp11-kit0-32bit]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Fixed · Fixed: 0.26.2-1.1
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-32bit]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-devel]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-nss-trust]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-nss-trust-32bit]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-server]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed
[p11-kit-tools]Unknown
Source package: [p11-kit]
Details (1)
- 0.26.2-1.6 · x86_64 · tumbleweed
  Unknown · Fixed: 0.26.2-1.1
  Version impact unknown
  nvd · p11-kit · opensuse · tumbleweed

Observed: Oct 24, 2026, 12:53:31 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]