CVE-2026-108334

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.

• https://github.com/Kuadrant/kuadrant-operator/commit/7e667dc216e6ad38feaeadb391da59aa0380057a
• https://github.com/advisories/GHSA-fcw2-f6v9-6ffp

• https://access.redhat.com/errata/RHSA-2026:83531
• https://access.redhat.com/security/cve/CVE-2026-108334
• https://bugzilla.redhat.com/show_bug.cgi?id=2548768
• https://github.com/Kuadrant/kuadrant-operator/commit/7e667dc216e6ad38feaeadb391da59aa0380057a
• https://github.com/advisories/GHSA-fcw2-f6v9-6ffp

• CRITICALCVE-2026-104711
• CRITICALCVE-2026-87830

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