CVE catalog

CVE-2026-59676

A Time-of-check Time-of-use (TOCTOU) Race Condition…

A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in seunshare of selinux policycoreutils allows a user calling seunshare that is running in the unconfined SELinux domain to delete arbitrary root-owned files, This issue affects policycoreutils through 3.10.

Severity: Medium · CVSS 5.8CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Jul 23, 2026, 6:40:22 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.10% · Oct 27, 2026

Projects and upstream resources

[libsepol][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": "selinux-python",
      "status": "fixed",
      "release": "sid",
      "version": "3.11-2"
    },
    {
      "name": "selinux-python",
      "status": "fixed",
      "release": "forky",
      "version": "3.11-2"
    },
    {
      "name": "selinux-python",
      "status": "fixed",
      "release": "trixie",
      "version": "3.8.1-2"
    },
    {
      "name": "selinux-python",
      "status": "not affected",
      "release": "bookworm",
      "version": "3.4-1"
    },
    {
      "name": "policycoreutils",
      "status": "fixed",
      "release": "sid",
      "version": "3.11-1"
    },
    {
      "name": "policycoreutils",
      "status": "fixed",
      "release": "forky",
      "version": "3.11-1"
    },
    {
      "name": "policycoreutils",
      "status": "fixed",
      "release": "trixie",
      "version": "3.8.1-2"
    },
    {
      "name": "policycoreutils",
      "status": "fixed",
      "release": "bookworm",
      "version": "3.4-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "selinux-python",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.7-1"
    },
    {
      "bug": null,
      "name": "selinux-python",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.7-1"
    },
    {
      "bug": null,
      "name": "selinux-python",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "3.7-1"
    },
    {
      "bug": null,
      "name": "selinux-python",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "policycoreutils",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "2.7-1"
    },
    {
      "bug": null,
      "name": "policycoreutils",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "2.7-1"
    },
    {
      "bug": null,
      "name": "policycoreutils",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "2.7-1"
    },
    {
      "bug": null,
      "name": "policycoreutils",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "2.7-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "selinux-python",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "2.7-2"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-59676"
    },
    {
      "name": "selinux-python",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "2.9-2",
        "3.0-1",
        "3.0-1build1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-59676"
    },
    {
      "name": "selinux-python",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "3.1-1build1",
        "3.3-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-59676"
    },
    {
      "name": "selinux-python",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "3.5-1"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2026-59676"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[newrole]Unknown
Source package: [policycoreutils]
Details (2)
- 3.4-1 · amd64 · bookworm
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · bookworm; nvd · policycoreutils · debian · 12
- 3.4-1 · arm64 · bookworm
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · bookworm; nvd · policycoreutils · debian · 12
[policycoreutils]Unknown
Details (2)
- 3.4-1 · amd64 · bookworm
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · bookworm; nvd · policycoreutils · debian · 12
- 3.4-1 · arm64 · bookworm
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · bookworm; nvd · policycoreutils · debian · 12
[policycoreutils-dev]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1+b2 · amd64 · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1+b2 · arm64 · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
[policycoreutils-gui]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
[policycoreutils-python-utils]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
[policycoreutils-sandbox]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1+b2 · amd64 · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1+b2 · arm64 · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
[python3-sepolgen]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
[python3-sepolicy]Unknown
Source package: [selinux-python]
Details (2)
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm
- 3.4-1 · all · bookworm
  Not affected
  nvd · selinux-python · debian · bookworm

[Debian 13 (Trixie)]

[newrole]Unknown
Source package: [policycoreutils]
Details (2)
- 3.8.1-2 · amd64 · trixie
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · 13
- 3.8.1-2 · arm64 · trixie
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · 13
[policycoreutils]Unknown
Details (2)
- 3.8.1-2 · amd64 · trixie
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · 13
- 3.8.1-2 · arm64 · trixie
  Fixed · Fixed: 2.7-1
  nvd · policycoreutils · debian · 13
[policycoreutils-dev]Unknown
Source package: [selinux-python]
Details (2)
- 3.8.1-2 · amd64 · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
- 3.8.1-2 · arm64 · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
[policycoreutils-python-utils]Unknown
Source package: [selinux-python]
Details (2)
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
[python3-sepolgen]Unknown
Source package: [selinux-python]
Details (2)
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
[python3-sepolicy]Unknown
Source package: [selinux-python]
Details (2)
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13
- 3.8.1-2 · all · trixie
  Fixed · Fixed: 3.7-1
  nvd · selinux-python · debian · 13

Observed: Oct 23, 2026, 9:43:34 PM UTC

References

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