VulnSocial

CVE-2026-45738Patch(argoproj / argo_cd)

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch argoproj argo_cd systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

argoproj CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • argo_cd

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
argoproj
Products
argo_cd

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-13: 1Patch / Workaround · 2026-05-13: 1Technical Details · 2026-05-13: 105-13
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • Upwind Security MDR@UpwindMDR
    Patch

    🚨 High - Argo CD Stored XSS → Admin Session Hijack (CVE-2026-45738) A stored XSS in Argo CD's application Summary tab allows a developer with application write access to inject JavaScript URIs via annotation values using the pipe-delimited "Display Text | javascript:..." format. When an administrator views the application and clicks the disguised link, arbitrary JavaScript executes in the admin's authenticated session, leading to a full takeover of the GitOps controller and every Kubernetes workload it manages. The root cause is React 16.x rendering unsanitized JavaScript hrefs, combined with missing URL validation and a permissive CSP. This high-severity flaw (CVSS 7.3) requires an authenticated, low-privilege developer and a single admin click. 👉 Affected: Argo CD < 3.2.12, < 3.3.10, < 3.4.2 | Upgrade to 3.2.12, 3.3.10, or 3.4.2

    Post summary

    The post describes a stored XSS in Argo CD that can hijack admin sessions and provides the vendor-specified patch releases to mitigate the flaw.

    0002094
    187 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appargoprojargo_cd---

Explore more

Back to dashboardargoproj CVEsargo_cd vulnerabilities