CVE-2026-112210 Rhc: rhc: local privilege escalation via symlink following in rhc-canonical-facts.service
A local attacker with compromised yggdrasil service access can escalate privileges to root via symlink following in rhc-canonical-facts.service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112210?
CVE-2026-112210 is a medium-severity path traversal vulnerability in Red Hat Enterprise Linux 10, published on 19 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-59
Which versions are affected by CVE-2026-112210?
How do I fix CVE-2026-112210?
No fix has been published for CVE-2026-112210 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-112210 being exploited?
There is no known exploitation of CVE-2026-112210 in the wild and no public exploit code.
Sources
Also known as GHSA-jmqr-pj67-cqv5.