Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook
Description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/argoproj/argo-cd/v2Go | >= 2.9.0-rc1, < 2.14.20 | 2.14.20 |
github.com/argoproj/argo-cd/v3Go | >= 3.2.0-rc1, < 3.2.0-rc2 | 3.2.0-rc2 |
github.com/argoproj/argo-cd/v3Go | >= 3.1.0-rc1, < 3.1.8 | 3.1.8 |
github.com/argoproj/argo-cd/v3Go | >= 3.0.0-rc1, < 3.0.19 | 3.0.19 |
Affected products
10- osv-coords9 versionspkg:apk/chainguard/argo-cd-2.13-repo-serverpkg:apk/chainguard/argo-cd-fips-2.13-repo-serverpkg:apk/wolfi/argo-cd-2.13-repo-serverpkg:bitnami/argo-cdpkg:golang/github.com/argoproj/argo-cd/v2pkg:golang/github.com/argoproj/argo-cd/v3pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweedpkg:rpm/suse/govulncheck-vulndb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6
< 2.13.9-r2+ 8 more
- (no CPE)range: < 2.13.9-r2
- (no CPE)range: < 2.13.9-r3
- (no CPE)range: < 2.13.9-r2
- (no CPE)range: >= 2.9.0, < 2.14.20
- (no CPE)range: >= 2.9.0-rc1, < 2.14.20
- (no CPE)range: >= 3.2.0-rc1, < 3.2.0-rc2
- (no CPE)range: < 0.0.20251023T162509-150000.1.110.1
- (no CPE)range: < 0.0.20251023T162509-1.1
- (no CPE)range: < 0.0.20251023T162509-150000.1.110.1
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-gpx4-37g2-c8pvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-59538ghsaADVISORY
- github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632bafghsax_refsource_MISCWEB
- github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pvghsax_refsource_CONFIRMWEB
- pkg.go.dev/vuln/GO-2025-3995ghsaWEB
News mentions
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