← Back to CVE Explorer

CVE-2026-53287

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: audit: fix incorrect inheritable capability in CAPSET records __audit_log_capset() records the effective capability set into the inheritable field due to a copy-paste error. Every CAPSET audit record therefore reports cap_pi (process inheritable) with the value of cap_effective instead of cap_inheritable. This silently corrupts audit data used for compliance and forensic analysis: an attacker who modifies inheritable capabilities to prepare for a privilege-escalating exec would have the change masked in the audit trail. The bug has been present since the original introduction of CAPSET audit records in 2008.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-06-26 20:17:21.457000
Last modified
2026-11-06 17:18:19.930000
View original CVE JSON
{
  "id": "CVE-2026-53287",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-06-26T20:17:21.457",
  "lastModified": "2026-11-06T17:18:19.930",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix incorrect inheritable capability in CAPSET records\n\n__audit_log_capset() records the effective capability set into the\ninheritable field due to a copy-paste error. Every CAPSET audit\nrecord therefore reports cap_pi (process inheritable) with the value\nof cap_effective instead of cap_inheritable.\n\nThis silently corrupts audit data used for compliance and forensic\nanalysis: an attacker who modifies inheritable capabilities to\nprepare for a privilege-escalating exec would have the change masked\nin the audit trail.\n\nThe bug has been present since the original introduction of CAPSET\naudit records in 2008."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "kernel/auditsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "75bd76c9eb2de9afeca03dc5152ebca5fb8fc816",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "febb4bf373ac565d3fb8d1f429827bdd983be496",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "95de7bb4bf535a9288549d401ebde83cdcbf2792",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "151ee470edc3d7ed29fe72df678f8357d2ad8ced",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "0a065c51a225854768b772a0b733a44d77162582",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "e35f3550c5b4fab33103c18654c293cee9850b0a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "d782e4d200cd9036ef353eeb29525bfbfd13a14e",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e68b75a027bb94066576139ee33676264f867b87",
              "lessThan": "e4a640475e43f406fdfd56d370b1f34b0cbbc18d",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "kernel/auditsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "2.6.29",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.258",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.209",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.175",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.141",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.91",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.33",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.0.10",
              "lessThanOrEqual": "7.0.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-06T16:25:22.858560Z",
          "id": "CVE-2026-53287",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.29",
              "versionEndExcluding": "5.10.258",
              "matchCriteriaId": "CE62A641-B2AF-4077-9B44-DCE56A381D1C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.11",
              "versionEndExcluding": "5.15.209",
              "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.16",
              "versionEndExcluding": "6.1.175",
              "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.2",
              "versionEndExcluding": "6.6.141",
              "matchCriteriaId": "97A9FFFA-22BB-4D5C-9790-5A2286E392F7"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.7",
              "versionEndExcluding": "6.12.91",
              "matchCriteriaId": "C918746B-DE6F-448F-A93E-A04C5481688D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.13",
              "versionEndExcluding": "6.18.33",
              "matchCriteriaId": "96D99E49-380D-43AB-BDBA-25C3AD018A9C"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.19",
              "versionEndExcluding": "7.0.10",
              "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0a065c51a225854768b772a0b733a44d77162582",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/151ee470edc3d7ed29fe72df678f8357d2ad8ced",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/75bd76c9eb2de9afeca03dc5152ebca5fb8fc816",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/95de7bb4bf535a9288549d401ebde83cdcbf2792",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/d782e4d200cd9036ef353eeb29525bfbfd13a14e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/e35f3550c5b4fab33103c18654c293cee9850b0a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/e4a640475e43f406fdfd56d370b1f34b0cbbc18d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://git.kernel.org/stable/c/febb4bf373ac565d3fb8d1f429827bdd983be496",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ]
    }
  ]
}