CVE-2026-54371

Publication date 29 June 2026

Last updated 31 August 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.1 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
attr 26.04 LTS resolute
Fixed 1:2.5.2-4ubuntu0.1
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 1:2.5.2-1ubuntu0.1
22.04 LTS jammy
Fixed 1:2.5.1-1ubuntu0.1
20.04 LTS focal
Fixed 1:2.4.48-5ubuntu0.1~esm1
18.04 LTS bionic
Fixed 1:2.4.47-2ubuntu0.18.04.1~esm1
16.04 LTS xenial
Fixed 1:2.4.47-2ubuntu0.16.04.1~esm1
14.04 LTS trusty
Fixed 1:2.4.47-1ubuntu1+esm1

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Notes

mdeslaur

attr developer recommends to update to new version, but this may conflict with tar, amongst others, see "Compatibility Notes": https://www.openwall.com/lists/oss-security/2026/06/29/1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
attr

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

Related Ubuntu Security Notices (USN)

Other references

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