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2 vulnerabilities by tailcallhq
CVE-2026-57860 (GCVE-0-2026-57860)
Vulnerability from nvd – Published: 2026-07-17 16:16 – Updated: 2026-07-20 17:45
VLAI
EPSS
VEX
Title
ForgeCode Arbitrary Code Execution via Unvetted .mcp.json in Untrusted Repository
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/tailcallhq/forgecode/issues/3022 | issue-tracking |
| https://github.com/tailcallhq/forgecode/issues/3252 | issue-tracking |
| https://github.com/tailcallhq/forgecode | product |
| https://github.com/tailcallhq/forgecode/commit/68… | patch |
| https://www.vulncheck.com/advisories/forgecode-ar… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tailcallhq | forgecode |
Affected:
2.11.1
(git)
|
Date Public
2026-07-17 00:00
Credits
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CVE-2026-57860 (GCVE-0-2026-57860)
Vulnerability from cvelistv5 – Published: 2026-07-17 16:16 – Updated: 2026-07-20 17:45
VLAI
EPSS
VEX
Title
ForgeCode Arbitrary Code Execution via Unvetted .mcp.json in Untrusted Repository
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/tailcallhq/forgecode/issues/3022 | issue-tracking |
| https://github.com/tailcallhq/forgecode/issues/3252 | issue-tracking |
| https://github.com/tailcallhq/forgecode | product |
| https://github.com/tailcallhq/forgecode/commit/68… | patch |
| https://www.vulncheck.com/advisories/forgecode-ar… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tailcallhq | forgecode |
Affected:
2.11.1
(git)
|
Date Public
2026-07-17 00:00
Credits
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}
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