DEBIAN-CVE-2026-54370
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-54370
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54370.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-54370
- Upstream
- Published
- 2026-06-29T14:16:57Z
- Modified
- 2026-09-14T17:03:20Z
- Severity
-
- 7.2 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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 CVSS Calculator
- Summary
- [none]
- Details
-
acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.
- References
Affected packages
Debian:12 / acl
Package
- Name
- acl
- Purl
- pkg:deb/debian/acl?arch=source&distro=bookworm
Debian:13 / acl
Package
- Name
- acl
- Purl
- pkg:deb/debian/acl?arch=source&distro=trixie
Debian:14 / acl
Package
- Name
- acl
- Purl
- pkg:deb/debian/acl?arch=source&distro=forky