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Vulnerability record · CVE-2025-67843 · published 19 December 2025

CVE-2025-67843: Mintlify vulnerability

Mintlify · Mintlify

A Server-Side Template Injection (SSTI) vulnerability in the MDX Rendering Engine in Mintlify Platform before 2025-11-15 allows remote attackers to execute arbitrary code via inline JSX expressions in an MDX file.

9.8 CVSS 3.1 Critical EPSS 1.1% · top 35.5% CWE-1336 · CWE-1336
9.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A Server-Side Template Injection (SSTI) vulnerability in the MDX Rendering Engine in Mintlify Platform before 2025-11-15 allows remote attackers to execute arbitrary code via inline JSX expressions in an MDX file.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kibty.town/blog/mintlify/ ExploitThird Party Advisory
https://news.ycombinator.com/item?id=46317098 Issue Tracking
https://www.mintlify.com/blog/working-with-security-researchers-november-2025 Vendor Advisory
https://www.mintlify.com/docs/changelog Release Notes
https://kibty.town/blog/mintlify/ ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-67843), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.