Bug 2446344 (CVE-2026-31837) - CVE-2026-31837 istio: Istio: Information disclosure and authentication bypass via JWKS resolver unavailability
Summary: CVE-2026-31837 istio: Istio: Information disclosure and authentication bypass...
Keywords:
Status: NEW
Alias: CVE-2026-31837
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-10 23:03 UTC by OSIDB Bzimport
Modified: 2026-03-11 12:11 UTC (History)
19 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-03-10 23:03:21 UTC 
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.
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