CVE-2026-45738
Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation
- State
- Published
- Severity
- 7.3 High
- Published
- Jul 15, 2026
- Updated
- Jul 16, 2026
- Reserved
- May 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
argo-cdargoproj |
|
References
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38
- https://github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0f
- https://github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317fc4f88b325122
- https://github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d87081cd52f0a6
- https://github.com/argoproj/argo-cd/releases/tag/v3.2.12
- https://github.com/argoproj/argo-cd/releases/tag/v3.3.10
- https://github.com/argoproj/argo-cd/releases/tag/v3.4.2
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