CVE-2026-44246
- Source
- https://cve.org/CVERecord?id=CVE-2026-44246
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44246.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-44246
- Aliases
-
- GHSA-63mx-j37w-gh59
- Published
- 2026-05-12T20:41:32.162Z
- Modified
- 2026-07-08T08:13:47.219663493Z
- Severity
-
- 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- nnU-Net: Agentic workflow injection in `.github/workflows/issue-triage.yml` of `MIC-DKFZ/nnUNet`
- Details
-
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 allowednonwrite_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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44246.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-1427" ] }- References
Affected packages
Git / github.com/mic-dkfz/nnunet
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mic-dkfz/nnunet
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "CPE_RANGE" ], "cpe": "cpe:2.3:a:dkfz:nnu-net:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "2.4.1" } ] }