Description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to 3.2.12, 3.3.10, and 3.4.2, Argo CD users with application write access can set link.argocd.argoproj.io/* annotations whose pipe-separated values are rendered by ui/src/app/applications/components/application-summary/application-summary.tsx in the Summary tab URLs section as anchor href values without URL validation, allowing javascript: execution in a higher-privileged user's authenticated Argo CD origin session. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.
Affected products
argoproj: argo cd
References8
- github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-… ExploitVendor Advisory
- github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-… ExploitVendor Advisory
- github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c86… Patch
- github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317f… Patch
- github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d8… Patch
- github.com/argoproj/argo-cd/releases/tag/v3.2.12 Release Notes
- github.com/argoproj/argo-cd/releases/tag/v3.3.10 Release Notes
- github.com/argoproj/argo-cd/releases/tag/v3.4.2 Release Notes
Metrics
- CVSS 3.1
-
8.7
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - EPSS — exploit probability
- 1% percentile: 50 · as of 15 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.