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CVE-2026-5952

Incorrect Authorization in GitLab

MEDIUM
4.3
CVSS Score
Published: June 25, 2026 at 04:34 AM UTC
Updated: June 27, 2026 at 11:42 AM UTC
1 product affected across 1 vendorGitLab

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.11 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to bypass package protection rules and overwrite protected Maven package metadata due to incorrect authorization checks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab· GitLabmaven
95%
17.11 ≤ v < 18.11.617.11.0 ≤ v < 18.11.619.0 ≤ v < 19.0.319.0.0 ≤ v < 19.0.319.1 ≤ v < 19.1.117.1119.019.119.1.0
Affected range stops below 18.11.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.0.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.1.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Broken Link
Source: cverecord
https://gitlab.com/gitlab-org/gitlab/-/work_items/596134
Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3632428
Release NotesVendor Advisory
Source: cverecord
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMGitLab
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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