Advisory details:
gitlab / npm/mcp-bridge/GHSA-wvr4-3wq4-gpc5
| Advisory ID | gitlab/npm/mcp-bridge/GHSA-wvr4-3wq4-gpc5 |
| Aliases |
GHSA-wvr4-3wq4-gpc5
|
| Summary | MCP Connect has unauthenticated remote OS command execution via /bridge endpoint When _AUTH_TOKEN_ and _ACCESS_TOKEN_ environment variables are not set (which is the default out-of-the-box configuration) the _/bridge_ HTTP endpoint is completely unauthenticated. Any network-accessible caller can POST a request with an attacker-controlled serverPath and args payload, causing the server to spawn an arbitrary OS process as the user running mcp-bridge. This results in full remote code execution on the host without any credentials. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/mcp-bridge/GHSA-wvr4-3wq4-gpc5.yml |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/EvalsOne/MCP-connect | ||
| https://github.com/EvalsOne/MCP-connect/security/advisories/GHSA-wvr4-3wq4-gpc5 | ||
| GHSA-wvr4-3wq4-gpc5 | https://github.com/advisories/GHSA-wvr4-3wq4-gpc5 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.