CVE-2026-54371

Summary

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.

Affected Software

Weaknesses

• CWE-59: Improper Link Resolution Before File Access ('Link Following')

ADP Enrichment

attr: Symlink Traversal Privilege Escalation via getfattr and setfattr

Additional References

• 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
• https://access.redhat.com/errata/RHSA-2026:34889

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=c440855d6b33446edf4b5eb1a2d892281f15a99b
• https://cgit.git.savannah.nongnu.org/cgit/attr.git/commit/?id=49f79e947270f06940b9100fa638f85dddc4aa7f
• https://www.vulncheck.com/advisories/attr-symlink-traversal-privilege-escalation-via-getfattr-setfattr

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