Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-59538
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-01 21:16:43 UTC
Updated2026-10-12 15:10:00 UTC
DescriptionArgo 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-248 | CWE-703 | CWE-248 CWE-248: Uncaught Exception | CWE-703 CWE-703: Improper Check or Handling of Exceptional Conditions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Argoproj Argo Cd All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Argoproj Argo-cd affected >= 2.9.0-rc1, < 2.14.20 Not specified
CNA Argoproj Argo-cd affected >= 3.2.0-rc1, < 3.2.0-rc2 Not specified
CNA Argoproj Argo-cd affected >= 3.1.0-rc1, < 3.1.8 Not specified
CNA Argoproj Argo-cd affected >= 3.0.0-rc1, < 3.0.19 Not specified

References

ReferenceSourceLinkTags
github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632baf [email protected] github.com Patch
github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pv 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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