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.

INFO

Published Date :

2026-03-10T21:57:44.387Z

Last Modified :

2026-03-11T15:58:29.647Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31837 vulnerability.

Vendors Products
Istio
  • Istio
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31837.

URL Resource
https://github.com/istio/istio/security/advisories/GHSA-v75c-crr9-733c cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-31837 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-31837 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact