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CVE-2026-91151VulnerabilityPublished Updated

cockpit

Affects cockpitSource GCVE Database

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Authoritative record:CVE-2026-91151· High 7.3

Not known to be exploited · CVSS 7.3 High.

Data as of 13 Nov 2026, 21:53 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10cockpitpkg:deb/ubuntu/cockpit?arch=source&distro=stonkingOther threatsAffected
  • 360-1 – 367-1
4 affected builds
Fixed in–
Ubuntu 26.04 LTScockpitpkg:deb/ubuntu/cockpit?arch=source&distro=resoluteOther threatsAffected
  • 346-1 – 360-1
9 affected builds
Fixed in–
Ubuntu 24.04 LTScockpitpkg:deb/ubuntu/cockpit?arch=source&distro=nobleOther threatsAffected
  • 300.1-1 – 314-1
12 affected builds
Fixed in–
Ubuntu 22.04 LTScockpitpkg:deb/ubuntu/cockpit?arch=source&distro=jammyOther threatsAffected
  • 252-1 – 264-1ubuntu0.22.04.1
11 affected builds
Fixed in–
Ubuntu 20.04 LTScockpitpkg:deb/ubuntu/cockpit?arch=source&distro=focalOther threatsAffected
  • 202.1-1 – 215-1
11 affected builds
Fixed in–
Ubuntu 18.04 LTScockpitpkg:deb/ubuntu/cockpit?arch=source&distro=bionicOther threatsAffected
  • 151-1 – 164-1
9 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix for this vulnerability is available. Users should apply the official patches or updates provided by their vendor or distribution to remediate this issue. Since exploitation requires a privileged execution context and user interaction, limiting local user privileges and monitoring for suspicious activity may help reduce risk until patches are applied. Consult the vendor advisory for specific patch versions and deployment instructions.

Description

A local authenticated user with control over a target account's home directory in Cockpit can exploit a privileged symlink dereference vulnerability in the ssh-add-public-key.sh helper. This vulnerability allows the attacker to manipulate symlinks within .ssh or authorized_keys paths, leading to arbitrary changes in file ownership and modes. The flaw can result in local privilege escalation and impacts the system's integrity, confidentiality, and availability. Exploitation requires user interaction and elevated privileges, preventing remote or unauthenticated attacks.

References

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