High severity · published Oct 1, 2025
CVE-2025-59537
argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload
7.5
CVSS
0.6%
EPSS
No
On KEV
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. With the default configuration, no webhook.gogs.secret set, Argo CD’s /api/webhook endpoint will crash the entire argocd-server process when it receives a Gogs push event whose JSON field commits[].repo is not set or is null. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AR
argo-cd · argoproj
>= 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 · source: vendor
AC
Argo CD · Argoproj
1.2.0 through 1.8.7; 2.0.0 before 2.14.20; 3.0.0 before 3.0.19; 3.1.0 before 3.1.8; 3.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59537
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59537
Patch
https://github.com/argoproj/argo-cd/commit/761fc27068d2d4cd24e1f784eb2a9033b5ee7f43
Exploit
https://github.com/argoproj/argo-cd/security/advisories/GHSA-wp4p-9pxh-cgx2
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