Denial of Service Vulnerability in Argo CD by Argo Project
CVE-2025-59537

7.5HIGH

Key Information:

Vendor

Argoproj

Status
Argo-cd
Vendor
CVE Published:
1 October 2025

What is CVE-2025-59537?

Argo CD, a GitOps continuous delivery tool for Kubernetes, is susceptible to malicious API requests that can inadvertently crash the API server, resulting in denial of service for legitimate users. This issue arises particularly when the default configuration is employed without a specified webhook secret. Specifically, when the /api/webhook endpoint receives a Gogs push event where the JSON field for commits[].repo is absent or null, it compromises the stability of the argocd-server process. Users are advised to upgrade to versions 2.14.20, 3.2.0-rc2, 3.1.8, and 3.0.19 to mitigate this issue.

Affected Version(s)

argo-cd >= 1.2.0, <= 1.8.7 <= 1.2.0, 1.8.7

argo-cd >= 2.0.0-rc1, < 2.14.20 < 2.0.0-rc1, 2.14.20

argo-cd >= 3.2.0-rc1, < 3.2.0-rc2 < 3.2.0-rc1, 3.2.0-rc2

References

https://github.com/argoproj/argo-cd/security/advisories/G...
x_refsource_CONFIRM
https://github.com/argoproj/argo-cd/commit/761fc27068d2d4...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59537 : Denial of Service Vulnerability in Argo CD by Argo Project