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CVE-2025-59531

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Date: October 1, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Improper Check or Handling of Exceptional Conditions

CWE-703

Top Fix

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Upgrade Version

Upgrade to version github.com/argoproj/argo-cd/v2 - v2.14.20;github.com/argoproj/argo-cd/v3 - v3.2.0-rc2;github.com/argoproj/argo-cd/v3 - v3.1.8;github.com/argoproj/argo-cd/v3 - v3.0.19;https://github.com/argoproj/argo-cd.git - v3.2.0-rc2;https://github.com/argoproj/argo-cd.git - v3.0.19;https://github.com/argoproj/argo-cd.git - v3.1.8

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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