Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-45738US | high8.7 | — | ||
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.argopr… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/argoproj/argo-cd/commit/00f83c41dcfd879f34f8e0248c860d704b41cf0fFIX
- https://github.com/argoproj/argo-cd/commit/35ea43c537d6e8948e67f347317fc4f88b325122FIX
- https://github.com/argoproj/argo-cd/commit/c8df5ff7acc403adcee1256da5d87081cd52f0a6FIX
- https://github.com/argoproj/argo-cd/releases/tag/v3.2.12ARTICLE
- https://github.com/argoproj/argo-cd/releases/tag/v3.3.10ARTICLE
- https://github.com/argoproj/argo-cd/releases/tag/v3.4.2ARTICLE
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-45738WEB
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