CVE-2025-11702Public exploitNetwork attack vectorHinoki check available

Runner hijacking via unchecked cross-project attachment

Published Oct 29, 2025 · Updated Oct 29, 2025

Missing authorization in the runner API in GitLab EE allows remote authenticated users to hijack other projects' runners. The POST /api/v4/projects/{project_id}/runners endpoint accepts an incrementing runner ID without confirming that the caller is authorized for that runner. Exploitation requires an API-scoped token for a user with a custom Guest role granting Manage runners in an Ultimate-licensed group; the user can attach, edit, or pause the victim runner.

CVSS severity8.5
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in the runner API in GitLab EE allows remote authenticated users to hijack other projects' runners. The POST /api/v4/projects/{project_id}/runners endpoint accepts an incrementing runner ID without confirming that the caller is authorized for that runner. Exploitation requires an API-scoped token for a user with a custom Guest role granting Manage runners in an Ultimate-licensed group; the user can attach, edit, or pause the victim runner.

The record

CVE
CVE-2025-11702
Published
Oct 29, 2025
Updated
Oct 29, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 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=17.1 <18.3.5
  2. Affected versionversion=18.4 <18.4.3
  3. Affected versionversion=18.5 <18.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=17.1 <18.3.5; version=18.4 <18.4.3; version=18.5 <18.5.1

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5GitLab Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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.

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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-862Missing Authorization
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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