CVE-2025-59538: Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook
argoproj · argo-cd
Affected: argoproj argo-cd · Exploitation: likely to be exploited (10% or more)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 95% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- argoproj · argo-cd>= 2.9.0-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
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- argoproj
- Published
- October 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-59538 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.