CVE-2026-44246: MIC-DKFZ nnUNet, инжекция

Описание

Оригинално описание

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 the agent beyond its intended issue-triage purpose and influences authenticated issue actions. This vulnerability is fixed in 2.4.1.

Засегнати продукти

• MIC-DKFZ nnUNet: < 2.4.1

Вид слабост

• CWE-1427 Improper Neutralization of Input Used for LLM Prompting

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-44246
• https://nvd.nist.gov/vuln/detail/CVE-2026-44246
• https://github.com/MIC-DKFZ/nnUNet/security/advisories/GHSA-63mx-j37w-gh59