CVE-2024-21652 Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss

What is CVE-2024-21652?

CVE-2024-21652 is a critical vulnerability in Argoproj Argo Cd, published on 18 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to versions 2.8.13, 2.9.9, and 2.10.4, an attacker can exploit a chain of vulnerabilities, including a Denial of Service (DoS) flaw and in-memory data storage weakness, to effectively bypass the application's brute force login protection. This is a critical security vulnerability that allows attackers to bypass the brute force login protection mechanism. Not only can they crash the service affecting all users, but they can also make unlimited login attempts, increasing the risk of account compromise. Versions 2.8.13, 2.9.9, and 2.10.4 contain a patch for this issue.

Weakness: CWE-307

Which versions are affected by CVE-2024-21652?

It affects 1 product.

Products include Argoproj Argo Cd.

How do I fix CVE-2024-21652?

Apply the vendor's patch.

Is CVE-2024-21652 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-21652 exists.

Other vulnerabilities in Argoproj Argo Cd

• CVE-2025-55190 Argo CD: Project API Token Exposes Repository Credentials Critical 10.0
• CVE-2022-29165 Argo CD will blindly trust JWT claims if anonymous access is enabled Critical 10.0
• CVE-2023-40029 Cluster secret might leak in cluster details page in Argo CD Critical 9.9
• CVE-2022-24768 Improper access control allows admin privilege escalation in Argo CD Critical 9.9
• CVE-2026-42880 ArgoCD ServerSideDiff is vulnerable to Kubernetes Secret Extraction Critical 9.6

All Argoproj Argo Cd vulnerabilities

Sources

• CVE record
• NVD
• OSV
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