CVE-2025-59538 (GCVE-0-2025-59538)

Vulnerability from cvelistv5 – Published: 2025-10-01 21:09 – Updated: 2025-10-02 15:54
VLAI
Title
Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook
Summary
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-02 15:32 UTC
CWE
  • CWE-248 - Uncaught Exception
  • CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version CPE status
argoproj argo-cd Affected: >= 2.9.0-rc1, < 2.14.20
Affected: >= 3.2.0-rc1, < 3.2.0-rc2
Affected: >= 3.1.0-rc1, < 3.1.8
Affected: >= 3.0.0-rc1, < 3.0.19
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