UBUNTU-CVE-2026-91202

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-91202

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91202.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-91202

Upstream

CVE-2026-91202

Published

2026-09-21T00:00:00Z

Modified

2026-09-21T21:40:54Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged "Paste as owner" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation.

References

Affected packages

Ubuntu:26.04:LTS / cockpit-files

Package

Name: cockpit-files
Purl: pkg:deb/ubuntu/cockpit-files?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

Other

36-1

39-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "cockpit-files",
            "binary_version":  "39-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91202.json"