Cyber Resilience

CVE-2025-67846

Mintlify ≤ 2025-11-15

Public PoC
Published
19 December 2025
Modified
02 January 2026
Patch / advisory
View advisory
CVSS Score v3.1 4.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0039 32th percentile
Risk Priority 38 floored blend · peak EPSS

Summary

CVE-2025-67846 is a medium-severity External Control of Assumed-Immutable Web Parameter (CWE-472) vulnerability in Mintlify Mintlify. Its CVSS base score is 4.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

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…

more

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.

CWE(s)
CWE-472

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-67844Same product: Mintlify Mintlify
CVE-2025-67845Same product: Mintlify Mintlify
CVE-2025-67842Same product: Mintlify Mintlify
CVE-2025-67843Same product: Mintlify Mintlify
CVE-2026-8510Shared CWE-472
CVE-2026-5912Shared CWE-472
CVE-2026-13281Shared CWE-472
CVE-2025-54551Shared CWE-472
CVE-2025-43930Shared CWE-472
CVE-2026-7340Shared CWE-472

Affected Assets

mintlify
mintlify
≤ 2025-11-15

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

SI-10 directly requires validation of all inputs, eliminating the assumption that client-supplied parameters remain immutable.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require server-side validation of all inputs instead of trusting client-supplied immutable parameters.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards require server-side verification of client-supplied data, eliminating the root cause of external control of immutable parameters.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance will detect parameter tampering vulnerabilities before deployment.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates input validation and integrity checks that directly prevent external tampering of assumed-immutable parameters.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for validation of all inputs, including hidden fields, mitigating CWE-472.

A.8.3 Information access restriction none match
none

Information access restriction can limit which parameters users may influence, providing a secondary layer of defense.

References