Improper Access Control in GitLab EE Affects Package Management Features
CVE-2026-1747

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
25 February 2026

What is CVE-2026-1747?

GitLab has identified a significant security issue in its GitLab EE product that affects multiple versions. This vulnerability arises from insufficient access control mechanisms under specific conditions, allowing Developer-role users to manipulate protected Conan packages without the necessary permissions. This situation could lead to unauthorized modifications, putting the integrity of package management at risk. GitLab has released patches to address this issue, highlighting the importance of updating affected versions.

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Deploy the Patch

Affected Version(s)

GitLab 17.11 < 18.7.5

GitLab 18.8 < 18.8.5

GitLab 18.9 < 18.9.1

References

https://gitlab.com/gitlab-org/gitlab/-/issues/588385
issue-trackingpermissions-required
https://hackerone.com/reports/3533088
technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/02/25/patch-releas...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [modhanami](https://hackerone.com/modhanami) for reporting this vulnerability through our HackerOne bug bounty program
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