CVE-2025-67846Public exploitNetwork attack vector

Security-patch bypass via predictable deployment identifiers

Published Dec 19, 2025 · Updated Dec 19, 2025

Deployment downgrade in Mintlify Platform before 2025-11-15 allows remote attackers to load outdated sites through predictable preview URLs. The deployment infrastructure accepts a git-ref or deployment-id subdomain as an authoritative version selector and serves an older Vercel deployment without ensuring that it remains current. Exploitation requires a reachable prior deployment identifier; loading that build re-exposes its patched flaws and can disclose customer configuration data.

CVSS severity4.9
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deployment downgrade in Mintlify Platform before 2025-11-15 allows remote attackers to load outdated sites through predictable preview URLs. The deployment infrastructure accepts a git-ref or deployment-id subdomain as an authoritative version selector and serves an older Vercel deployment without ensuring that it remains current. Exploitation requires a reachable prior deployment identifier; loading that build re-exposes its patched flaws and can disclose customer configuration data.

The record

CVE
CVE-2025-67846
Published
Dec 19, 2025
Updated
Dec 19, 2025
Vendor
Mintlify
Product
Mintlify Platform
Classifications
CWE-472, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025-11-15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mintlify · Mintlify Platformversion=0 <2025-11-15

Published CVSS scores

4.9MITRECVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-472External Control of Assumed-Immutable Web Parameter
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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