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Fencer Vulns
high 7.5

CVE-2025-59531 json

Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload

published 2025-09-30 13 mo ago modified 2026-10-12 28 d ago also BIT-argo-cd-2025-59531 , EUVD-2025-31767 , GHSA-f9gq-prrc-hrhc , GO-2025-3993

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 48%
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. 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.

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-2025-59531 updated cvss 7.5

argocd: argocd-server: gitops: Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload

  • 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 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

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc 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-703 Improper Check or Handling of Exceptional Conditions

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.