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Withdrawn: CLEANSTART-2026-AS59691 — Security fixes for CVE-2026-24051, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-31837, CVE-2026-31838, ghsa…

Withdrawn by the publisher.

Affected: CleanStart: istio

Multiple security vulnerabilities affect the istio package. These issues are resolved in later releases. See references for individual vulnerability details.

EUVD-2026-280539

fkie_cve-2026-31838

Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a vulnerability in Envoy RBAC header matching could allow authorization policy bypass when policies rely on HTTP headers that may contain multiple values. An attacker could craft requests with multiple header values in a way that causes Envoy to evaluate the header differently than intended, potentially bypassing authorization checks. This may allow unauthorized requests to reach protected services when policies depend on such header-based matching conditions. This vulnerability is fixed in 1.29.1, 1.28.5, and 1.27.8.

WID-SEC-W-2026-0704 — Google Cloud Platform Envoy Proxy, Istio und Service Mesh: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Google Cloud Platform ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.