Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.2 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:P | CNA (snyk) |
- CISA KEV Not listed.
- EPSS 0.0042, the 36th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-frq9-3hp2-xvxg
- OSV: GHSA-frq9-3hp2-xvxg
- nvd.nist.gov/vuln/detail/CVE-2025-5276
- github.com/zcaceres/markdownify-mcp/commit/0284aa8f34d32c65e20d8cda2d429b7943c9af03
- github.com/zcaceres/markdownify-mcp
- github.com/zcaceres/markdownify-mcp/blob/224cf89f0d58616d2a5522f60f184e8391d1c9e3/src/server.ts#L20C17-L20C29
- security.snyk.io/vuln/SNYK-JS-MCPMARKDOWNIFYSERVER-10249387