CVE-2026-112210

Rhc: rhc: local privilege escalation via symlink following in rhc-canonical-facts.service

State
Published
Severity
6.0 Medium
Published
Oct 19, 2026
Updated
Oct 19, 2026
Reserved
Oct 19, 2026

Read the record on cve.org

Description

A flaw was found in the rhc-canonical-facts.service systemd unit shipped with rhc. The service runs as root and operates on a file inside a directory owned by an unprivileged system user without verifying that the file is not a symbolic link. A local attacker who has already compromised the privileged yggdrasil system service account can exploit this to gain ownership of arbitrary files, leading to privilege escalation to root.

Scores

CVSSScoreVectorSource
3.16.0 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Hredhat

Weaknesses

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

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat
        Red Hat Enterprise Linux 9Red Hat

          References

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