CVE-2026-51996
CriticalCVSS 9.8Exploitation Probability (EPSS)
Elevated risk54th percentile - higher than 54% of all known CVEs
Summary
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function.
Risk Assessment
This may lead to full system compromise, posing a critical security threat.
Recommendation
Update mcp-remote to a version that includes a fix for this vulnerability.
Other vulnerabilities in mcp-remote
See all- CVE-2026-51994Critical
mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header.
- CVE-2026-108716Medium
mcp-remote 0.8.0 through 0.14.3 has a cleartext transmission vulnerability in authorizeWithDeviceCode that sends client secrets and receives tokens without enforcing HTTPS endpoints. When discovered device authorization and token endpoints are non-loopback HTTP URLs, on-path network attackers can capture the client secret plus issued access and refresh tokens.
- CVE-2026-52001High
An issue in geelen mcp-remote 0.1.18 through 0.1.38 allows a remote attacker to obtain sensitive information via the SSE transport eventSourceInit fetch wrapper in src/lib/utils.ts.
- CVE-2026-51997High
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the open() functions.
Original NVD description (English source)
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function
Vulnerability data from NVD (NIST) · CISA KEV · EPSS