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This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-91151 →
Unrated

A flaw was found in Cockpit. A local authenticated user with control over a target account's home directory can exploit a privileged symlink dereferen...

UBUNTU-CVE-2026-91151 First seen on SecPulse

Affected packages

PackageAffected → Fixed
Ubuntu:18.04:LTScockpit
All versions→ Not listed
Ubuntu:20.04:LTScockpit
All versions→ Not listed
Ubuntu:22.04:LTScockpit
All versions→ Not listed
Ubuntu:24.04:LTScockpit
All versions→ Not listed
Ubuntu:26.10cockpit
All versions→ Not listed
Ubuntu:26.04:LTScockpit
All versions→ Not listed

This record does not list fixed versions. Check the article or the vendor advisory in the references for whether and where it is fixed.

Original description The description as published by the source.

A flaw was found in Cockpit. A local authenticated user with control over a target account's home directory can exploit a privileged symlink dereference vulnerability in the ssh-add-public-key.sh helper. When this helper runs with elevated privileges, it can be tricked into following attacker-controlled symlinks within the .ssh or authorized_keys paths. This allows the attacker to arbitrarily change file ownership and modes, potentially leading to local privilege escalation and impacting the integrity, confidentiality, and availability of the system.

Source: OSV.dev (Open Source Vulnerabilities) OSV

References

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