Vulnerability in Acl Project
CVE-2026-54371
attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Acl Project — versions 0
- Attr Project — versions 0
Weakness classification (CWE)
References
- cgit.git.savannah.nongnu.org/cgit/attr.git/commit/ (patch)
- cgit.git.savannah.nongnu.org/cgit/attr.git/commit/ (issue-tracking)
- www.vulncheck.com/advisories/attr-symlink-traversal-privilege-escalation-via-ge… (third-party-advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-54371?
- CVE-2026-54371 is a high-severity vulnerability in Acl Project, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2026-06-29.
- How severe is CVE-2026-54371?
- High severity. CVSS v3 base score is 7.1 out of 10.