CVE-2025-59531

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

HIGH

7.5

CVSS Score

Published: October 1, 2025 at 08:49 PM UTC

Updated: October 12, 2026 at 03:10 PM UTC

1 product affected across 1 vendorArgo CD

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Severity

HIGH7.5

Exploit prediction

EPSS 0.6%

SSVC

PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Argo CD · Argoprojgo

95%

1.2.0 ≤ v ≤ 1.8.72.0.0 ≤ v < 2.14.203.0.0 ≤ v < 3.0.193.1.0 ≤ v < 3.1.83.2.03.2.0 rc1

Affected range stops below 2.14.20, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.19, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.1.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.0-rc2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMExploitMitigationVendor Advisory

Source: cverecord

https://github.com/argoproj/argo-cd/security/advisories/GHSA-f9gq-prrc-hrhc

x_refsource_MISCPatch

Source: cverecord

https://github.com/argoproj/argo-cd/commit/5c466a4e39802e059e75c0008ae7b7b8e842538f

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-703

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