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TI-2026-12394 Aliases CVE-2026-14702GHSA-cf27-pvxx-xmcj

zcaceres markdownify-mcp webpage-to-markdown Markdownify.ts saveToTempFile random values

Priority MEDIUM 44CWE-310Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A flaw has been found in zcaceres markdownify-mcp up to 1.1.0. This impacts the function saveToTempFile of the file src/Markdownify.ts of the component webpage-to-markdown/youtube-to-markdown/bing-search-to-markdown. This manipulation causes insufficiently random values. The attack is restricted to local execution. A high degree of complexity is needed for the attack. The exploitability is said to be difficult. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00144 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
zcaceresmarkdownify-mcp1.0; 1.1.0—No fix listedCNA
  • markdownify-mcp Vendorzcaceres Affected 1.0; 1.1.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:zcaceres:markdownify-mcp:*:*:*:*:*:*:*:*——zcaceres
  • cpe:2.3:a:zcaceres:markdownify-mcp:*:*:*:*:*:*:*:* Versions — — ·zcaceres

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14702
  2. 2026-10-03 Alias added: GHSA-cf27-pvxx-xmcj

References

Exploit 1

Patch 1

Other 1

  • TI-2025-40381 fetch-mcp v1.0.2 and before is vulnerable to Server-Side Request Forgery (SSRF)… CVSS 3.1HIGH 7.5
  • TI-2025-40380 A Server-Side Request Forgery (SSRF) vulnerability was discovered in the… CVSS 3.1HIGH 7.5
  • TI-2025-36147 Markdownify is vulnerable to command injection through pptx-to-markdown tool CVSS 3.1HIGH 7.5
  • TI-2026-12391 zcaceres markdownify-mcp Markdownify.ts assertPathAllowed symlink CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences