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OpenAdvisories
High · 7.5 CVE-2025-59531 BIT-argo-cd-2025-59531EUVD-2025-31767GHSA-f9gq-prrc-hrhcGO-2025-3993

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

Published Oct 1, 2025 · Updated Oct 2, 2025 · Assigned by GitHub_M

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 products

VendorProductAffectedFixed
argoproj argo-cd >= 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 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES 15 SP6 govulncheck-vulndb 0.0.20251023T162509-150000.1.110.1 SUSE-SU-2025:3799-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed govulncheck-vulndb 0.0.20251023T162509-1.1 openSUSE-SU-2025:15666-1
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1
openSUSE Leap 15.6 govulncheck-vulndb 0.0.20251023T162509-150000.1.110.1 SUSE-SU-2025:3799-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/argoproj/argo-cd >= 1.2.0, <= 1.8.7 — GHSA-f9gq-prrc-hrhc
Go github.com/argoproj/argo-cd >= 1.2.0 — GO-2025-3993
Go github.com/argoproj/argo-cd/v2 >= 2.0.0-rc1, < 2.14.20 2.14.20 GHSA-f9gq-prrc-hrhc
Go github.com/argoproj/argo-cd/v2 < 2.14.20 2.14.20 GO-2025-3993
Go github.com/argoproj/argo-cd/v3 >= 3.2.0-rc1, < 3.2.0-rc2 3.2.0-rc2 GHSA-f9gq-prrc-hrhc
Go github.com/argoproj/argo-cd/v3 >= 3.1.0-rc1, < 3.1.8 3.1.8 GHSA-f9gq-prrc-hrhc
Go github.com/argoproj/argo-cd/v3 >= 3.0.0-rc1, < 3.0.19 3.0.19 GHSA-f9gq-prrc-hrhc
Go github.com/argoproj/argo-cd/v3 >= 3.0.0-rc1, < 3.0.19 · >= 3.1.0-rc1, < 3.1.8 · >= 3.2.0-rc1, < 3.2.0-rc2 3.0.19, 3.1.8, 3.2.0-rc2 GO-2025-3993

Advisories 4

References