CVE-2025-59531 - CVE House
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Status published High CVE-2025-59531

Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload

Vulnerability Description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. Without a configured webhook.bitbucketserver.secret, Argo CD's /api/webhook endpoint crashes when receiving a malformed Bitbucket Server payload (non-array repository.links.clone field). A single unauthenticated request triggers CrashLoopBackOff, and targeting all replicas causes complete API outage. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

argo-cd
Vulnerable Versions:
>= 1.2.0, <= 1.8.7, >= 2.0.0-rc1, < 2.14.20, >= 3.2.0-rc1, < 3.2.0-rc2, >= 3.1.0-rc1, < 3.1.8, >= 3.0.0-rc1, < 3.0.19

Timeline

Official Publish: October 1st, 2025
Last Modified: October 2nd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-703

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.