CVE-2025-3396Network attack vector

Group forking restriction bypass via crafted API requests

Published Jul 10, 2025 · Updated Jul 10, 2025

Incorrect authorization in GitLab EE allows remote authenticated users to bypass group-level forking restrictions through crafted API requests. The group-level forking control fails to reject manipulated API requests, but GitLab has not disclosed the affected endpoint, request field, or faulty authorization operation. A project owner account and an enabled group restriction are required; the bypass permits a project fork outside the group and disclosure of repository content.

CVSS severity4.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in GitLab EE allows remote authenticated users to bypass group-level forking restrictions through crafted API requests. The group-level forking control fails to reject manipulated API requests, but GitLab has not disclosed the affected endpoint, request field, or faulty authorization operation. A project owner account and an enabled group restriction are required; the bypass permits a project fork outside the group and disclosure of repository content.

The record

CVE
CVE-2025-3396
Published
Jul 10, 2025
Updated
Jul 10, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-863, T1213.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 10, 2025Record 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=13.3 <17.11.6
  2. Affected versionversion=18.0 <18.0.4
  3. Affected versionversion=18.1 <18.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=13.3 <17.11.6; version=18.0 <18.0.4; version=18.1 <18.1.2

Published CVSS scores

4.3GitLabCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1213.003Code Repositories

Public exploit references

No public exploit references are available in this record.

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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