Advisory record · GHSA-qr4g-8hrp-c4rw

Kyverno has unrestricted outbound requests in Kyverno apiCall enabling SSRF

CVSS 8.3 HighEPSS 0.0035 · 29th percentile

Published by the GitHub Advisory Database at 14 Apr 2026, 20:05 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/kyverno/kyvernoGo<=1.17.1No fixed version yet
Identifiers
GHSA-qr4g-8hrp-c4rw · BIT-kyverno-2026-84196 · CVE-2026-84196 · GO-2026-5594
Weakness (CWE)
CWE-918
Published
14 Apr 2026
Updated
25 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Kyverno versions up to and including 1.17.1 are affected by a server-side request forgery flaw in apiCall URLs that use variable substitution. An authenticated user who can create resources matching a ClusterPolicy can cause the admission controller to send requests to arbitrary endpoints, including internal services and cloud metadata, and response data can be returned in admission error messages. The source gives no fixed version and no workaround.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.3 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0035, the 29th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:13 UTC First seen by agentprime
  2. 31 Oct 2026, 14:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.