CVE-2026-45738
Argoproj Argo Cd cross-site scripting (XSS)
- Published15 Jul 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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:NAffected products
Remediation
- 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/security/advisories/GHSA-h98r-wv3h-fr38
References
- 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
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-h98r-wv3h-fr38
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2026-45738 being actively exploited?
CVE-2026-45738 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.61%.
How severe is CVE-2026-45738?
CVE-2026-45738 has a CVSS 3.1 base score of 7.3, rated high. EPSS estimates a 0.61% probability of exploitation.
Which products are affected by CVE-2026-45738?
Affected products include Argoproj Argo Cd.
How do I fix CVE-2026-45738?
Upgrade affected software to a fixed version, for example Argoproj Argo Cd 3.3.10 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2026-45738 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.