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VulnerabilityPublished

CVE-2026-41413: istio · Server-Side Request Forgery (SSRF)

Affects istioSource GCVE Database

0

Not known to be exploited · CVSS 5.0 Medium : upgrade to 1.29.2 or 1.28.6 when convenient.

Data as of 27 Oct 2026, 00:07 UTC

CVSS 3.1 base score
5.0Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.29.2, 1.28.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade istio to 1.29.2 or 1.28.6.

Affected software

ProductAffectedFixed in
istio istioAffected
  • <1.28.6
  • >=1.29.0-alpha.0 <1.29.2
Fixed in
  • 1.28.6
  • 1.29.2

Description

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.

References

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