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CVE-2025-59531— Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload

Quick assessment

Affected
argoproj argo-cd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Argo CD是Argo开源的一个用于Kubernetes的声明性GitOps连续交付工具。 Argo CD存在安全漏洞，该漏洞源于处理恶意API请求时未配置webhook.bitbucketserver.secret，可能导致拒绝服务攻击。以下版本受到影响：1.8.7及之前版本、2.14.19及之前版本、3.2.0-rc1及之前版本、3.1.7版本和3.0.18版本。

CVSS 7.5 · High EPSS 0.55% · P43
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I. Basic Information for CVE-2025-59531

Vulnerability Information
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Vulnerability Title
Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件检查或处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Argo CD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Argo CD是Argo开源的一个用于Kubernetes的声明性GitOps连续交付工具。 Argo CD存在安全漏洞，该漏洞源于处理恶意API请求时未配置webhook.bitbucketserver.secret，可能导致拒绝服务攻击。以下版本受到影响：1.8.7及之前版本、2.14.19及之前版本、3.2.0-rc1及之前版本、3.1.7版本和3.0.18版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
argoproj argo-cd >= 1.2.0, <= 1.8.7 -

II. Public POCs for CVE-2025-59531

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III. Intelligence Information for CVE-2025-59531

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Patches & Fixes for CVE-2025-59531 (1)

Vendor Advisories for CVE-2025-59531 (1)

Same Patch Batch · argoproj · 2025-10-01 · 3 CVEs total

CVE-2025-59537 7.5 HIGH argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload
CVE-2025-59538 7.5 HIGH Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push we

IV. Related Vulnerabilities

Same product: argo-cd
Same vendor: argoproj
Same weakness: CWE-703

V. Comments for CVE-2025-59531

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