Versions of the package mcp-markdownify-server before 1.0.0 are vulnerable to Files or…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-552.
Summary
Versions of the package mcp-markdownify-server before 1.0.0 are vulnerable to Files or Directories Accessible to External Parties via the get-markdown-file tool. An attacker can craft a prompt that, once accessed by the MCP host, will allow it to read arbitrary files from the host running the server.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | mcp-markdownify-server | before 1.0.0 | 1.0.0 | Patch available | CNA |
| — | mcp-markdownify-server (npm) | up to 0.0.1 | — | No fix listed | GHSA-22v8-p7h2-rj7p |
- mcp-markdownify-server Vendor— Affected before 1.0.0 Fixed in 1.0.0 Patch available CNA
- mcp-markdownify-server (npm) Vendor— Affected up to 0.0.1 Fixed in — No fix listed GHSA-22v8-p7h2-rj7p
Remediation
- Fix · CNA mcp-markdownify-server Fixed in 1.0.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
mcp-markdownify-server 1.0.0
2 records Highest priority Priority HIGH 2 HIGH
Other records, highest priority first
- TI-2025-04739 Server-side request forgery in mcp-markdownify-serverPriority HIGH 69
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5273
- 2026-10-03 Alias added: GHSA-22v8-p7h2-rj7p
References
Other 4
- https://github.com/zcaceres/markdownify-mcp/commit/3a6b202d088ef7acb8be84bc09515f41a2b1a9df
- https://github.com/zcaceres/markdownify-mcp/blob/3667bd4765c0e49684ce22df268d02dd478a7f3b/src/Markdownify.ts%23L94
- https://github.com/zcaceres/markdownify-mcp
- https://github.com/zcaceres/markdownify-mcp/blob/3667bd4765c0e49684ce22df268d02dd478a7f3b/src/Markdownify.ts#L94
Sources
- CVE-2025-5273 · CVE Program
- CVE-2025-5273 · NVD
- FIRST EPSS
- GHSA-22v8-p7h2-rj7p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences