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CVE-2025-59531

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

Published: Oct 1, 2025Updated: Oct 7, 2025 Sources: CVE List NVD GHSACWE-703
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.5%
Top 59.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-703

Affected Products

argo cdargoproj
On-premDev Tool
Cloud & SaaS / container-orchestration
argo-cdargoproj
On-premDev Tool
Cloud & SaaS / container-orchestration
github.com/argoproj/argo-cdGoOSS Libraries
github.com/argoproj/argo-cd/v2GoOSS Libraries
github.com/argoproj/argo-cd/v3GoOSS Libraries
argoprojoss-projectCloud & SaaSaka argo cd, argo-cd, argo workflows, argo workflow
gopackage-ecosystemOSS Libraries

Exploitability

Official Patch Available
Workaround Available

References

https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f
github.com
https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-59531
nvd.nist.gov
and 2 more references View all →

Timeline

Published
Oct 1, 2025
Last Updated
Oct 7, 2025

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