CVE-2026-92874Network attack vectorHinoki check available

Authenticated out-of-scope actions via improper authorization checks

Published Sep 23, 2026 · Updated Sep 23, 2026

Incorrect authorization in affected GitLab CE/EE releases from 18.3 allows remote authenticated users to exceed MCP token scopes. The MCP API scope-enforcement path accepts the token but applies an improper authorization check before dispatching actions; GitLab has not disclosed the precise check. The gate is possession of an authenticated MCP-scoped token, and successful use permits only actions reachable through the faulty scope enforcement, with no reported service interruption.

CVSS severity5.4
Medium
EPSS probability0.15%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in affected GitLab CE/EE releases from 18.3 allows remote authenticated users to exceed MCP token scopes. The MCP API scope-enforcement path accepts the token but applies an improper authorization check before dispatching actions; GitLab has not disclosed the precise check. The gate is possession of an authenticated MCP-scoped token, and successful use permits only actions reachable through the faulty scope enforcement, with no reported service interruption.

The record

CVE
CVE-2026-92874
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
GitLab
Product
GitLab
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=18.3 <19.2.7
  2. Affected versionversion=19.3 <19.3.3
  3. Affected versionversion=19.4 <19.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=18.3 <19.2.7; version=19.3 <19.3.3; version=19.4 <19.4.1

Published CVSS scores

5.4GitLabCVSS:3.1/AV:N/AC:L/PR:L/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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