CVE-2026-41413

medium Red Hat
CVSS v3 Base Score
5.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
EPSS Score
0.1%
Exploitation probability in 30 days
Top 77% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Published: May 7, 2026 (64 days ago)
Last Modified: May 7, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Istio. When a RequestAuthentication resource is created with a jwksUri (JSON Web Key Set Uniform Resource Identifier) that points to an internal service, istiod (the Istio control plane daemon) makes an unauthenticated HTTP GET request to that URL. This request does not properly filter out localhost or link-local IP addresses. Consequently, sensitive data can be inadvertently distributed to Envoy proxies via xDS (API for dynamic configuration) configuration, leading to information disclosure.

CWE

CWE-918

Affected Products

OpenShift Service Mesh 2OpenShift Service Mesh 3

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com