argoproj Argo CD up to 3.2.11/3.3.9/3.4.1 Summary tab URLs section application-summary.tsx cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in argoproj Argo CD up to 3.2.11/3.3.9/3.4.1. Impacted is an unknown function of the file ui/src/app/applications/components/application-summary/application-summary.tsx of the component Summary tab URLs section. Performing a manipulation results in cross site scripting. This vulnerability is known as CVE-2026-45738. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in argoproj Argo CD up to 3.2.11/3.3.9/3.4.1. This affects some unknown functionality of the file ui/src/app/applications/components/application-summary/application-summary.tsx of the component Summary tab URLs section. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE 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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-45738 since 05/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 3.2.12, 3.3.10 or 3.4.2 eliminates this vulnerability.

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Productinfo

Vendor

• argoproj

Name

• Argo CD

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.2.11
• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.4.0
• 3.4.1

CPE 2.3info

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CPE 2.2info

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