CVE-2026-45738: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in argoproj argo-cd
CVE-2026-45738 is a high-severity cross-site scripting (XSS) vulnerability in Argo CD, a GitOps continuous delivery tool for Kubernetes. Versions prior to 3.2.12, 3.3.10, and 3.4.2 allow users with application write access to set certain annotations whose values are rendered as anchor href attributes without proper URL validation. This can lead to execution of javascript: URLs in the context of a higher-privileged user's authenticated session. The vulnerability is fixed in versions 3.2.12, 3.3.10, and 3.4.2.
AI Analysis
Technical Summary
Argo CD versions before 3.2.12, 3.3.10, and 3.4.2 contain an improper neutralization of input vulnerability (CWE-79) in the UI component that renders application summary URLs. Specifically, users with application write permissions can set annotations with pipe-separated values that are used as href attributes without validation, enabling injection of javascript: URLs. This allows execution of arbitrary JavaScript in the context of a higher-privileged authenticated user's session, potentially leading to account compromise or unauthorized actions. The issue is resolved by proper validation and sanitization of these annotation values in the fixed versions.
Potential Impact
Successful exploitation allows an attacker with application write access to execute arbitrary JavaScript code in the browser session of a higher-privileged authenticated Argo CD user. This can lead to compromise of the user's session, unauthorized actions, or data exposure within the Argo CD web interface. The vulnerability does not affect availability but impacts confidentiality and integrity.
Mitigation Recommendations
This vulnerability is fixed in Argo CD versions 3.2.12, 3.3.10, and 3.4.2. Users should upgrade to one of these versions or later to remediate the issue. No other mitigation or temporary workaround is indicated in the available data.
CVE-2026-45738: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in argoproj argo-cd
Description
CVE-2026-45738 is a high-severity cross-site scripting (XSS) vulnerability in Argo CD, a GitOps continuous delivery tool for Kubernetes. Versions prior to 3.2.12, 3.3.10, and 3.4.2 allow users with application write access to set certain annotations whose values are rendered as anchor href attributes without proper URL validation. This can lead to execution of javascript: URLs in the context of a higher-privileged user's authenticated session. The vulnerability is fixed in versions 3.2.12, 3.3.10, and 3.4.2.
CVSS v3.1
Score 7.3high
Affected software
pkg:github/argoproj/argo-cdRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Argo CD versions before 3.2.12, 3.3.10, and 3.4.2 contain an improper neutralization of input vulnerability (CWE-79) in the UI component that renders application summary URLs. Specifically, users with application write permissions can set annotations with pipe-separated values that are used as href attributes without validation, enabling injection of javascript: URLs. This allows execution of arbitrary JavaScript in the context of a higher-privileged authenticated user's session, potentially leading to account compromise or unauthorized actions. The issue is resolved by proper validation and sanitization of these annotation values in the fixed versions.
Potential Impact
Successful exploitation allows an attacker with application write access to execute arbitrary JavaScript code in the browser session of a higher-privileged authenticated Argo CD user. This can lead to compromise of the user's session, unauthorized actions, or data exposure within the Argo CD web interface. The vulnerability does not affect availability but impacts confidentiality and integrity.
Mitigation Recommendations
This vulnerability is fixed in Argo CD versions 3.2.12, 3.3.10, and 3.4.2. Users should upgrade to one of these versions or later to remediate the issue. No other mitigation or temporary workaround is indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-13T06:54:34.219Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a57eb0b68715ace4363c884
Added to database: 07/15/2026, 20:18:19 UTC
Last enriched: 07/15/2026, 20:32:55 UTC
Last updated: 07/15/2026, 21:22:45 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.