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.
CVE-2026-41413
This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.0
- EG Score
- 5.0(medium)
- EG Risk
- —
- EPSS
- 25.2%
- KEV
- Not listed
Published
May 7, 2026
Last Modified
May 8, 2026
Advisory Details (3)
Auto-updated May 7, 2026SSRF via RequestAuthentication jwksUri · Advisory · istio/istio · GitHub
https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhcRelease Istio 1.29.2 · istio/istio · GitHub
https://github.com/istio/istio/releases/tag/1.29.2Release Istio 1.28.6 · istio/istio · GitHub
https://github.com/istio/istio/releases/tag/1.28.6Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| istio.io/istio | — | 0.0.0-20260410004459-189832a289c1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-05-20 13:57 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-918
Frequently asked(5)
What is CVE-2026-41413?
When was CVE-2026-41413 disclosed?
Is CVE-2026-41413 actively exploited?
What is the CVSS score of CVE-2026-41413?
How do I remediate CVE-2026-41413?
Dependency Blast Radius
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