CVE-2026-108334
A flaw was found in the internal WebAssembly (WASM) shim used by the Kuadrant operator.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 0.34% probability · 28th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-917
- Source
- secalert@redhat.com
EPSS moved from 0.3% on 16 October 2026 to 0.3% on 26 October 2026.
References
- https://access.redhat.com/errata/RHSA-2026:83531
- https://access.redhat.com/errata/RHSA-2026:88203
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.