CVE-2026-108334 Security feature bypass in Red Hat Connectivity Link 1
Attackers can bypass gateway authentication and rate limiting by crafting HTTPRoute match values in the Kuadrant operator's WASM shim.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108334?
CVE-2026-108334 is a high-severity vulnerability in Red Hat Connectivity Link 1, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in the internal WebAssembly (WASM) shim used by the Kuadrant operator. When generating the CEL predicate that determines whether Gateway-level authentication and rate limiting should run, the shim does not correctly escape values from HTTPRoute match fields. A user who can create or modify an HTTPRoute attached to a shared Gateway can provide a crafted path, header, or query match value that causes the predicate to skip those checks. The request is still forwarded to the route’s backend.
Weakness: CWE-917
Which versions are affected by CVE-2026-108334?
How do I fix CVE-2026-108334?
No fix has been published for CVE-2026-108334 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-108334 being exploited?
There is no known exploitation of CVE-2026-108334 in the wild and no public exploit code.
Sources
Also known as GHSA-fcw2-f6v9-6ffp.