CVE-2025-5121Network attack vector

Authenticated CI/CD job injection via cross-group framework assignment

Published Jun 20, 2025 · Updated Jun 20, 2025

Missing authorization in GitLab Ultimate EE 17.11 through 17.11.3 and 18.0 through 18.0.1 allows remote authenticated users to inject CI/CD jobs. The compliance-framework application path fails to enforce group boundaries, so a framework containing malicious pipeline configuration can be assigned to projects outside its owning group. Authenticated access and an Ultimate license or trial are required; the injected job runs in all future pipelines of affected projects.

CVSS severity8.5
High
EPSS probability10.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in GitLab Ultimate EE 17.11 through 17.11.3 and 18.0 through 18.0.1 allows remote authenticated users to inject CI/CD jobs. The compliance-framework application path fails to enforce group boundaries, so a framework containing malicious pipeline configuration can be assigned to projects outside its owning group. Authenticated access and an Ultimate license or trial are required; the injected job runs in all future pipelines of affected projects.

The record

CVE
CVE-2025-5121
Published
Jun 20, 2025
Updated
Jun 20, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1677
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 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=17.11 <17.11.4
  2. Affected versionversion=18.0 <18.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=17.11 <17.11.4; version=18.0 <18.0.2

Published CVSS scores

9.9NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.5GitLabCVSS: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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1677Poisoned Pipeline Execution

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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