CVE-2026-71469 Acm-search-v2-api-rhel9: search-v2-api: unbounded tokenreviews cache allows unauthenticated memory-exhaustion dos
Unauthenticated attackers can cause memory exhaustion and denial of service in Red Hat Advanced Cluster Management by sending requests with unique bearer tokens.
- 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-2026-71469?
CVE-2026-71469 is a high-severity denial of service vulnerability in Red Hat Advanced Cluster Management for Kubernetes 2.11, published on 12 Aug 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 search-v2-api. An unauthenticated attacker can exploit this by sending requests with unique random bearer tokens. Each unique token creates a permanent entry in the unbounded tokenReviews cache, which is not properly cleared. This can lead to memory exhaustion of the search-api pod, resulting in a Denial of Service (DoS).
Weakness: CWE-770
Which versions are affected by CVE-2026-71469?
How do I fix CVE-2026-71469?
No fix has been published for CVE-2026-71469 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-71469 being exploited?
There is no known exploitation of CVE-2026-71469 in the wild and no public exploit code.
Sources
Also known as GHSA-6gx2-rqm4-38f9.