CVE-2026-103314 Stackrox: stackrox: saml response replay allows multiple central authentication tokens
Attackers can replay valid SAML responses to obtain multiple authentication tokens, enabling unauthorized access to the Central service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103314?
CVE-2026-103314 is a high-severity authentication bypass vulnerability in Red Hat Advanced Cluster Security for Kubernetes 4.10, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Red Hat Advanced Cluster Security for Kubernetes (RHACS). The Central SAML authentication ACS endpoint does not retain used SAML assertion or response identifiers to prevent replay. An attacker who obtains a valid, unexpired signed SAML response can submit it multiple times and receive distinct Central authentication tokens for the mapped identity.
Weakness: CWE-294
Which versions are affected by CVE-2026-103314?
How do I fix CVE-2026-103314?
No fix has been published for CVE-2026-103314 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-103314 being exploited?
There is no known exploitation of CVE-2026-103314 in the wild and no public exploit code.
Sources
Also known as GHSA-xxr5-h8gc-q63j.