cvedb.io
CVE-2026-44246
HIGH · CVSS 7.2
EPSS exploitation probability: 0%
Published 2026-05-12T21:16:16.543 · Last modified 2026-06-17T10:50:24.567

Summary

nnU-Net is a semantic segmentation framework that automatically adapts its pipeline to a dataset. Prior to 2.4.1, the nnU-Net Issue Triage workflow in .github/workflows/issue-triage.yml is vulnerable to Agentic Workflow Injection. The workflow sets allowed_non_write_users: ${{ github.event.issue.user.login }}, which means any logged-in GitHub user who opens an issue can reach this agentic workflow with attacker-controlled content. Untrusted issue title and body content are embedded directly into the prompt of anthropics/claude-code-action, and the workflow then runs a command-capable Claude agent with permission to comment on and relabel the current issue via gh. Because this workflow is triggered automatically on issues.opened, an external attacker can submit a crafted issue that steers t

Affected products

dkfz — nnu-net

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.