CVE-2026-31837
High · 7.5CVSS
7.5
EPSS
0.7%
Published
Mar 10, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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