CVE-2025-67846: mintlify — Exploit & Fix

Description

The Deployment Infrastructure in Mintlify Platform before 2025-11-15 allows remote attackers to bypass security patches and execute downgrade attacks via predictable deployment identifiers on the Vercel preview domain. An attacker can identify the URL structure of a previous deployment that contains unpatched vulnerabilities. By browsing directly to the specific git-ref or deployment-id subdomain, the attacker can force the application to load the vulnerable version.

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CVSS v3.1 Score

4.9

MEDIUM

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

Weakness Type (CWE)

CWE-472 CWE-472

Affected Products

Vendor	Product	Versions
mintlify	mintlify	< 2025-11-15

References

Advisories & Patches

https://www.mintlify.com/blog/working-with-security-researchers-november-2025

Exploits

https://kibty.town/blog/mintlify/

Other References

https://news.ycombinator.com/item?id=46317098 https://www.mintlify.com/docs/changelog

Frequently Asked Questions

What is CVE-2025-67846? +

The Deployment Infrastructure in Mintlify Platform before 2025-11-15 allows remote attackers to bypass security patches and execute downgrade attacks via predictable deployment identifiers on the Vercel preview domain. An attacker can identify the URL structure of a previous deployment that contains unpatched vulnerabilities. By browsing directly to the specific git-ref or deployment-id subdomain, the attacker can force the application to load the vulnerable version. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2025-67846? +

CVE-2025-67846 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-67846? +

CVE-2025-67846 affects products from mintlify, specifically: mintlify. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-67846? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-67846