CVE-2026-45738CWE-79

Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation

High · published July 15, 2026

CVSS v3.1
7.3
EPSS
1%
Percentile
48.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00606 · 48.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-15T19:54Z
EPSS history
Timeline
  • 15 JUL 19:54Z
    Argo CD: Stored XSS in application link annotations enables developer-to-admin privilege escalation
    cvelistv5