CVE-2026-53613
- Source
- https://cve.org/CVERecord?id=CVE-2026-53613
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53613.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53613
- Aliases
-
- GHSA-8gj5-72r3-428g
- Downstream
ALPINE (1)
ALSA (1)
AZL (1)
BELL (1)
DEBIAN (1)
ECHO (1)
MGASA (1)
openSUSE (2)
RLSA (1)
ROOT (1)
SUSE (10)
UBUNTU (1)
- Related
- Published
- 2026-10-14T14:52:56Z
- Modified
- 2026-11-02T10:41:48Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- util-linux mount target TOCTOU allows local privilege escalation
- Details
-
util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy
mount(2)path is used without/proc, restricted non-rootmountrequests validate an/etc/fstabtarget before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstabuserorusersentry whose target has an attacker-writable ancestor can userenameat2(RENAME_EXCHANGE)to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over/etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through/proc/self/fd; the documented legacy fallback without/procremains affected. - Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-367" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53613.json" }- References
-
- https://github.com/util-linux/util-linux/releases/tag/v2.41.5
- https://github.com/util-linux/util-linux/releases/tag/v2.42.2
- https://github.com/util-linux/util-linux/releases/tag/v2.42.4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53613.json
- https://github.com/util-linux/util-linux/security/advisories/GHSA-8gj5-72r3-428g
- https://nvd.nist.gov/vuln/detail/CVE-2026-53613
- https://github.com/util-linux/util-linux/commit/0b010025a0e429bc80355c94db86a843395d49e2
- https://github.com/util-linux/util-linux/commit/0d3d55975aa3492c62fd345eac38f41cd166c0b0
- https://github.com/util-linux/util-linux/commit/2c773f336134acf016e639abb6f12ba7341fe4b8
- https://github.com/util-linux/util-linux/commit/39fef62bf3226abb6bb018fa8750afa0327e84b4
- https://github.com/util-linux/util-linux/commit/472cc3fb2d4d47cca7aab2e0b59eb3fb8a9359ec
- https://github.com/util-linux/util-linux/commit/646fb66603d10a7ac337e14f566f1af48e3107c9
- https://github.com/util-linux/util-linux/commit/708d1b3c51932dc5ba8082c7368187715e6a8d78
- https://github.com/util-linux/util-linux/commit/78a860982e036f38fe9c0b3344998df5ac2c2ff5
- https://github.com/util-linux/util-linux/commit/85d16b341f7232c9dbb4884b632e1e956584bee9
- https://github.com/util-linux/util-linux/commit/a9508d216eb8977979102782672e0470cc9bf2a2
Affected packages
Git / github.com/util-linux/util-linux
Affected ranges
- Type
- GIT
- Repo
- https://github.com/util-linux/util-linux
- Events
-
IntroducedLast AffectedIntroducedFixedFixedFixedFixedFixedFixedFixedFixedFixedFixedFixedFixedFixed
- Database specific
-
Show details
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Affected versions
v2.*
v2.41
v2.41-rc1
v2.41-rc2
v2.41.1
v2.41.2
v2.41.2-rc1
v2.41.3
v2.41.4
v2.42
v2.42-rc1
v2.42-rc2
v2.42-start
v2.42.1
v2.43-devel
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53613.json"
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