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CVE-2026-41413

29
FAUCET Score

Istio is an open platform to connect, manage, and secure microservices. Prior to versions 1.28.6 and 1.29.2, when a RequestAuthentication resource is created with a jwksUri pointing to an internal service, istiod makes an unauthenticated HTTP GET request to that URL without filtering out localhost or link local ips. This can result in sensitive data being distributed to Envoy proxies via xDS configuration. This issue has been patched in versions 1.28.6 and 1.29.2.

First published: May 7, 2026Last modified: May 7, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 1.28.6CPE matchmatch criteria
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
>= 1.29.0, < 1.29.2CPE matchmatch criteria
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 13th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: istio.io/istioFixed in: 0.0.0-20260410004459-189832a289c1
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-fgw5-hp8f-xfhcmedium

Istio: SSRF via RequestAuthentication jwksUri

Apr 16, 2026

References

github.com / istio/istio/releases/tag/1.28.6
Release Notes
github.com / istio/istio/releases/tag/1.29.2
Release Notes
github.com / istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhc
MitigationVendor Advisory