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.

CVSS 3.1

7.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-25)

CWE

CWE-917

Published

2026-10-15

Modified

2026-10-23

Record from

the NVD, synced 2026-10-23

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

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