CVE-2025-59531
Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload
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.
INFO
Published Date :
Oct. 1, 2025, 9:16 p.m.
Last Modified :
Oct. 7, 2025, 2:39 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Argo CD to version 2.14.20 or later.
- Update Argo CD to version 3.2.0-rc2 or later.
- Update Argo CD to version 3.1.8 or later.
- Update Argo CD to version 3.0.19 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59531.
| URL | Resource |
|---|---|
| https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f | Patch |
| https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc | Exploit Vendor Advisory Mitigation |
| https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc | Exploit Vendor Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59531 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59531
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59531 vulnerability anywhere in the article.
-
Daily CyberSecurity
DoS Flaws in Argo CD: Unauthenticated Attackers Can Crash Kubernetes Server with Single Request
The Argo CD project has released patches addressing several denial-of-service (DoS) vulnerabilities that could allow attackers to crash the argocd-server process with a single unauthenticated HTTP req ... Read more
The following table lists the changes that have been made to the
CVE-2025-59531 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 07, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.19 *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.8 *cpe:2.3:a:argoproj:argo_cd:3.2.0:rc1:*:*:*:*:*:* *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 1.2.0 up to (including) 1.8.7 *cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.14.20 Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f Types: Patch Added Reference Type CISA-ADP: https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc Types: Exploit, Mitigation, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 02, 2025
Action Type Old Value New Value Added Reference https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc -
New CVE Received by [email protected]
Oct. 01, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-703 Added Reference https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f Added Reference https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc