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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-31837

Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

istio istio

  • >= 1.29.0-alpha.0, < 1.29.1affected
  • >= 1.28.0-alpha.0, < 1.28.5affected
  • < 1.27.8affected

References