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.
History

Thu, 02 Oct 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Oct 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Argoproj
Argoproj argo-cd
Vendors & Products Argoproj
Argoproj argo-cd

Thu, 02 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 01 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook
Weaknesses CWE-248
CWE-703
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-10-02T15:54:11.490Z

Reserved: 2025-09-17T17:04:20.373Z

Link: CVE-2025-59538

cve-icon Vulnrichment

Updated: 2025-10-02T15:32:30.951Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-01T21:16:43.800

Modified: 2025-10-02T19:11:46.753

Link: CVE-2025-59538

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-01T21:09:08Z

Links: CVE-2025-59538 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-02T08:38:19Z