CVE-2026-57860
- Source
- https://cve.org/CVERecord?id=CVE-2026-57860
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-57860.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-57860
- Published
- 2026-07-17T16:16:09Z
- Modified
- 2026-08-12T03:51:31Z
- Severity
-
- 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- ForgeCode Arbitrary Code Execution via Unvetted .mcp.json in Untrusted Repository
- Details
-
ForgeCode (tailcallhq/forgecode), an AI pair-programming CLI, automatically loads and executes the MCP servers defined in a repository's .mcp.json file on startup without user confirmation. A malicious repository can supply a crafted .mcp.json whose mcpServers entries specify arbitrary command and args values (for example, command: bash with args: ['-c', 'touch /tmp/pwned']). When a user runs the forge CLI inside a cloned untrusted repository, the specified commands are spawned with the invoking user's privileges, resulting in arbitrary code execution. This provides a reliable initial-access and persistence primitive against developers who evaluate untrusted repositories with ForgeCode.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-829" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57860.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57860.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-57860
- https://www.vulncheck.com/advisories/forgecode-arbitrary-code-execution-via-unvetted-mcp-json-in-untrusted-repository
- https://github.com/tailcallhq/forgecode/issues/3022
- https://github.com/tailcallhq/forgecode/issues/3252
- https://github.com/tailcallhq/forgecode/commit/68ca3a3a26c73c38a700453d3d021b5bbdc15dbd
- https://github.com/tailcallhq/forgecode