CVE-2026-54371
Publication date 30 June 2026
Last updated 30 June 2026
Ubuntu priority
Description
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| attr | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
CVSS version:
Base score
8.4 · High
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
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
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-54371
- https://www.openwall.com/lists/oss-security/2026/06/29/1
- https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=49f79e947270f06940b9100fa638f85dddc4aa7f
- https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=c440855d6b33446edf4b5eb1a2d892281f15a99b
- https://www.vulncheck.com/advisories/attr-symlink-traversal-privilege-escalation-via-getfattr-setfattr
- https://access.redhat.com/security/cve/CVE-2026-54371
- https://bugzilla.redhat.com/show_bug.cgi?id=2490283
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54371.json