CVE-2025-6171Public exploitNetwork attack vector

Information disclosure via packages API authorization bypass

Published Nov 15, 2025 · Updated Nov 17, 2025

Missing authorization in affected GitLab CE/EE releases allows remote authenticated users to read branch names and pipeline details. The packages API returns package-associated branch and pipeline metadata without enforcing the project's disabled Repository setting. Reporter access to a project with a published package is sufficient; repository contents or modification capabilities are not reported.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in affected GitLab CE/EE releases allows remote authenticated users to read branch names and pipeline details. The packages API returns package-associated branch and pipeline metadata without enforcing the project's disabled Repository setting. Reporter access to a project with a published package is sufficient; repository contents or modification capabilities are not reported.

The record

CVE
CVE-2025-6171
Published
Nov 15, 2025
Updated
Nov 17, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1213.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 2025Record 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=13.2 <18.3.6
  2. Affected versionversion=18.4 <18.4.4
  3. Affected versionversion=18.5 <18.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=13.2 <18.3.6; version=18.4 <18.4.4; version=18.5 <18.5.2

Published CVSS scores

5.3GitLab Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1213.003Code Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo