CVE-2026-2601Public exploitNetwork attack vector

Authenticated deployment-data disclosure via missing authorization

Published May 27, 2026 · Updated May 27, 2026

Missing authorization in affected GitLab EE releases allows remote authenticated users with Developer access to read sensitive deployment data. GitLab has disclosed only that the flaw resides in Operations, where authorization checks fail to restrict sensitive project deployment data. Developer-role access to an affected project is required; the bounded impact is disclosure, with no reported ability to alter data or interrupt service.

CVSS severity4.3
Medium
EPSS probability0.24%
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 EE releases allows remote authenticated users with Developer access to read sensitive deployment data. GitLab has disclosed only that the flaw resides in Operations, where authorization checks fail to restrict sensitive project deployment data. Developer-role access to an affected project is required; the bounded impact is disclosure, with no reported ability to alter data or interrupt service.

The record

CVE
CVE-2026-2601
Published
May 27, 2026
Updated
May 27, 2026
Vendor
GitLab
Product
GitLab
Classifications
CWE-862, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=11.5 <18.10.7
  2. Affected versionversion=18.11 <18.11.4
  3. Affected versionversion=19.0 <19.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=11.5 <18.10.7; version=18.11 <18.11.4; version=19.0 <19.0.1

Published CVSS scores

4.3GitLab Inc.CVSS: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 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
T1213Data from Information 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