CVE-2026-45738
Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation
HIGH 8.7EPSS 0.6%
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
- argoproj · argo-cd
- CVSS v3.1 NVD
- 8.7 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - CVSS v3.1 GITHUB
- 7.3 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N - EPSS
- 0.61% chance of exploitation in the next 30 days, 48th percentile
- Published
- 2026-07-15
- Updated
- 2026-07-16
Proof-of-concept exploits (1)
Security advisories
- argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38
- argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0f