Local Priv Escalation via Symlink Traversal in attr <2.6.0 Getfattr/Setfattr
CVE-2026-54371 Published on June 29, 2026
attr < 2.6.0 Symlink Traversal Privilege Escalation via getfattr/setfattr
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.
Vulnerability Analysis
CVE-2026-54371 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an insecure temporary file Vulnerability?
The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
CVE-2026-54371 has been classified to as an insecure temporary file vulnerability or weakness.
Products Associated with CVE-2026-54371
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Affected Versions
acl project acl:- Before 2.6.0 is affected.