Advisory severityHigh8.2Red Hat Linux

High [CVE-2026-88009] Authorization bypass and access-log evasion via crafted HTTP/1 request

This high-severity Red Hat Linux advisory covers CVE-2026-88009; related products: Red Hat OpenShift Dev Spaces.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-88009 Source published Sep 10, 2026Source updated Sep 10, 2026

VulniPulse record published Sep 23, 2026Record updated Sep 28, 2026

CVE-2026-88009

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Summary

Authorization bypass and access-log evasion via crafted HTTP/1 request. Red Hat rates this important (CVSS 8.2).

Weakness: CWE-551.

Affected product named by the advisory: Red Hat OpenShift Dev Spaces.

Affected versions

< 2.11.57
< 3.7.13

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Fixed versions

2.11.57
3.7.13

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

There is no effective configuration-level or path-sanitization mitigation within Traefik to resolve this issue, as request normalization occurs prior to routing and forwarding decisions. System administrators should upgrade Traefik to version 2.11.57, 3.7.13, or later, or deploy an upstream reverse proxy to sanitize or reject HTTP/1 requests containing rootless or opaque request targets before they reach Traefik.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

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