CVE-2026-8144Network attack vector

Private group member disclosure via unchecked search authorization

Published May 14, 2026 · Updated May 14, 2026

Missing authorization in GitLab CE/EE allows remote authenticated users with project membership to enumerate private group members via group user search. The group user search path returns member identities without verifying that a project member is authorized to view the private group's membership. Project membership is required; affected deployments run 15.1 through 18.9.6, 18.10 through 18.10.5, or 18.11 through 18.11.2, and exposure is limited to private-group identities.

CVSS severity4.3
Medium
EPSS probability0.18%
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 CE/EE allows remote authenticated users with project membership to enumerate private group members via group user search. The group user search path returns member identities without verifying that a project member is authorized to view the private group's membership. Project membership is required; affected deployments run 15.1 through 18.9.6, 18.10 through 18.10.5, or 18.11 through 18.11.2, and exposure is limited to private-group identities.

The record

CVE
CVE-2026-8144
Published
May 14, 2026
Updated
May 14, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record 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=15.1 <18.9.7
  2. Affected versionversion=18.10 <18.10.6
  3. Affected versionversion=18.11 <18.11.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=15.1 <18.9.7; version=18.10 <18.10.6; version=18.11 <18.11.3

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-862Missing Authorization
T1087Account Discovery

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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