---
cve: "CVE-2026-108334"
severity: "HIGH"
cvss: 7.4
epss: "0.3%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-10-15 18:44:42"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T23:30:23+01:00"
---

# CVE-2026-108334

> 7.4 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **redhat**
- State: PUBLISHED
- Stand: 2026-10-23 05:03:49
- CNA-CVSS: **7.4** (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Schwachstellen-Klasse

- **CWE-917** — Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
  The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

## Patch verfügbar (OSV)

- 7e667dc216e6ad38feaeadb391da59aa0380057a (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-108334/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_