CVE-2026-80110 Missing authorization in Red Hat Certificate System 9
A flawed ACL tie-breaker allows low-privileged agents to bypass authorization and create raw profiles, compromising certificate issuance policy integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-80110?
CVE-2026-80110 is a high-severity missing authorization vulnerability in Red Hat Certificate System 9, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in pki-core. The v2 REST ACL filter selects a tie-breaking permission for colliding literal and wildcard ACL keys using lexicographic string comparison rather than specificity, causing a wildcard-mapped permission to override a more specific literal-mapped permission when both match. In the CA's profile-management REST API this allows a request to POST /v2/profiles/raw -- intended to require Administrator-level profiles.create permission -- to instead be authorized under the lower-privileged profiles.approve permission held by the default Certificate Manager Agents group. The highest threat from this vulnerability is to confidentiality and integrity of the certificate authority's issuance policy.
Weakness: CWE-863
Which versions are affected by CVE-2026-80110?
How do I fix CVE-2026-80110?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-80110 being exploited?
There is no known exploitation of CVE-2026-80110 in the wild and no public exploit code.
Sources
Also known as GHSA-c24q-2g88-pp57, UBUNTU-CVE-2026-80110.