CVE-2026-53397

🗓️ 19 Jul 2026 12:01:58Reported by LinuxType

Fix posix_acl leak in nfsd SETACL decode failure by releasing acl_access and acl_default.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-53397	19 Jul 202612:01	–	attackerkb
Cvelist	CVE-2026-53397 nfsd: fix posix_acl leak on SETACL decode failure	19 Jul 202612:01	–	cvelist
EUVD	EUVD-2026-45519	19 Jul 202612:01	–	euvd
NVD	CVE-2026-53397	19 Jul 202612:16	–	nvd
OSV	CVE-2026-53397 nfsd: fix posix_acl leak on SETACL decode failure	19 Jul 202612:01	–	osv
OSV	DEBIAN-CVE-2026-53397	19 Jul 202612:16	–	osv
Positive Technologies	PT-2026-61102	19 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-53397	19 Jul 202617:35	–	susecve

Vulners

CNA

Node

linux linux_kernelRange2.6.13–5.10.260

linux linux_kernelRange5.11.0–5.15.211

linux linux_kernelRange5.16.0–6.1.177

linux linux_kernelRange6.2.0–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs2acl.c",
      "fs/nfsd/nfs3acl.c"
    ],
    "versions": [
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "b2eb1ffd511d1b3c3e21122f97cbbccea411e277",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "b94c4be77682aab06d65ca7296149e3bcfb37353",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "887f92ceccf3eacd5f2402db21254d66372fae00",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "1e96239fddcefacf6afe6c498357be68eacbcabc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "bd69a825485168ef74e815ecb286754b570fdcc7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "136b416593f1349cf6f72c8e3d18f0f204ee8545",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "a5b42c1e4ff2befaa6b96f7cbf32174751eba083",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a257cdd0e2179630d3201c32ba14d7fcb3c3a055",
        "lessThan": "0853ac544c590880d797b04daa33fcb72b6be0e1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfsd/nfs2acl.c",
      "fs/nfsd/nfs3acl.c"
    ],
    "versions": [
      {
        "version": "2.6.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.260",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.211",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/1e96239fddcefacf6afe6c498357be68eacbcabc
git	www.git.kernel.org/stable/c/0853ac544c590880d797b04daa33fcb72b6be0e1
git	www.git.kernel.org/stable/c/bd69a825485168ef74e815ecb286754b570fdcc7
git	www.git.kernel.org/stable/c/b2eb1ffd511d1b3c3e21122f97cbbccea411e277
git	www.git.kernel.org/stable/c/136b416593f1349cf6f72c8e3d18f0f204ee8545
git	www.git.kernel.org/stable/c/b94c4be77682aab06d65ca7296149e3bcfb37353
git	www.git.kernel.org/stable/c/887f92ceccf3eacd5f2402db21254d66372fae00
git	www.git.kernel.org/stable/c/a5b42c1e4ff2befaa6b96f7cbf32174751eba083

19 Jul 2026 12:16Current

5.5Medium risk

Vulners AI Score5.5