CVE-2025-11246Network attack vector

CI/CD disruption via unchecked runner association updates

Published Jan 9, 2026 · Updated Jan 9, 2026

Access-control failure in GitLab CE/EE 15.4 through 18.5.4, 18.6.0 through 18.6.2, and 18.7.0 allows remote authenticated users to detach runners. The GraphQL runnerUpdate mutation reconciles its supplied associatedProjects list without confining removals to projects on which the caller is authorized. Permission to update an owned runner is sufficient to unassign runners from unrelated projects, interrupting affected projects' CI/CD jobs.

CVSS severity5.4
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access-control failure in GitLab CE/EE 15.4 through 18.5.4, 18.6.0 through 18.6.2, and 18.7.0 allows remote authenticated users to detach runners. The GraphQL runnerUpdate mutation reconciles its supplied associatedProjects list without confining removals to projects on which the caller is authorized. Permission to update an owned runner is sufficient to unassign runners from unrelated projects, interrupting affected projects' CI/CD jobs.

The record

CVE
CVE-2025-11246
Published
Jan 9, 2026
Updated
Jan 9, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-1220, CAPEC-1, CAPEC-180, T1489
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 2026Record 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=15.4 <18.5.5
  2. Affected versionversion=18.6 <18.6.3
  3. Affected versionversion=18.7 <18.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=15.4 <18.5.5; version=18.6 <18.6.3; version=18.7 <18.7.1

Published CVSS scores

5.4GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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-1220Insufficient Granularity of Access Control
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1489Service Stop

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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