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Fencer Vulns
high 7.5

CVE-2025-59537 json

argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload

published 2025-09-30 13 mo ago modified 2026-10-12 27 d ago also BIT-argo-cd-2025-59537 , EUVD-2025-31766 , GHSA-wp4p-9pxh-cgx2 , GO-2025-3996

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/argoproj/argo-cd/v2 2.14.20
  • go github.com/argoproj/argo-cd/v3 3.0.19, 3.1.8, 3.2.0-rc2
  • bitnami argo-cd 2.14.20, 3.0.19, 3.1.8
  • linuxfoundation argo-cd 2.14.20, 3.0.19, 3.1.8, 3.2.0-rc2
  • linuxfoundation argo_continuous_delivery 2.14.20, 3.0.19, 3.1.8, 3.2.0-rc2
  • govulncheck-vulndb SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 0.0.20251023T162509-150000.1.110.1

suse advisories SUSE-SU-2025:3799-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20251023T162509-1.1

opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2025:15666-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-59537 updated cvss 5.3

github.com/argoproj/argo-cd: Argo CD unauthenticated Denial of Service

  • Red Hat Developer Hub 1 rhdh-orchestrator-dev-preview-beta/controller-rhel9-operator, rhdh-orchestrator-dev-preview-beta/orchestrator-operator-bundle
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift GitOps 1.16 openshift-gitops-1
    fixed: vendor fix RHSA-2025:17730
  • Red Hat OpenShift GitOps 1.17 openshift-gitops-1
    fixed: vendor fix RHSA-2025:17731
  • Red Hat OpenShift GitOps 1.18 openshift-gitops-1
    fixed: vendor fix RHSA-2025:18093
  • Red Hat OpenShift GitOps openshift-gitops-1/dex-rhel8, openshift-gitops-1/gitops-rhel8, openshift-gitops-1/must-gather-rhel8, openshift-gitops-1/argocd-agent-rhel8, openshift-gitops-1/argo-rollouts-rhel8, openshift-gitops-1/console-plugin-rhel8, +1 more
    not affected: vulnerable code not in execute path
  • Red Hat OpenShift GitOps 1.16 openshift-gitops-1 Red Hat OpenShift GitOps 1.17 openshift-gitops-1 Red Hat OpenShift GitOps 1.18 openshift-gitops-1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
13 mo ago

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/argoproj/argo-cd/security/advisories/GHSA-wp4p-9pxh-cgx2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/argoproj/argo-cd
>=1.2.0, <=1.8.7
>=1.2.0
 no fix listed
go github.com/argoproj/argo-cd/v2
>=2.0.0-rc1, <2.14.20
<2.14.20
2.14.20
go github.com/argoproj/argo-cd/v3
>=3.2.0-rc1, <3.2.0-rc2
>=3.1.0-rc1, <3.1.8
>=3.0.0-rc1, <3.0.19
3.2.0-rc2
3.1.8
3.0.19
bitnami argo-cd
>=1.2.0, <2.14.20
>=3.0.0, <3.0.19
>=3.1.0, <3.1.8
2.14.20
3.0.19
3.1.8

Affected products

  • argoproj argo-cd

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-476 NULL Pointer Dereference

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.