CVE-2026-31837: fallo de gravedad alta en istio
Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.7epss 0.4%
Istio is an open platform to connect, manage, and secure microservices. Prior to 1.29.1, 1.28.5, and 1.27.8, a user of Istio is impacted if the JWKS resolver becomes unavailable or the fetch fails, exposing hardcoded defaults regardless of use of the RequestAuthentication resource. This vulnerability is fixed in 1.29.1, 1.28.5, and 1.27.8.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Productos afectados
istio · istioCVEs relacionadas — istio
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Referencias
https://access.redhat.com/errata/RHSA-2026:10184https://access.redhat.com/errata/RHSA-2026:5948https://access.redhat.com/errata/RHSA-2026:5950https://access.redhat.com/errata/RHSA-2026:5952https://access.redhat.com/security/cve/CVE-2026-31837https://bugzilla.redhat.com/show_bug.cgi?id=2446344https://github.com/istio/istio/security/advisories/GHSA-v75c-crr9-733chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31837.json