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CVE-2026-5296

Missing Authorization in GitLab

MEDIUM
4.3
CVSS Score
Published: May 27, 2026 at 05:55 PM UTC
Updated: October 14, 2026 at 08:10 PM UTC
1 product affected across 1 vendorGitLab

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that when foundational flows were enabled at the group level, could have allowed an authenticated user with developer-role permissions to bypass flow restrictions under certain conditions.

Affected

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

GitLab· GitLabmaven
95%
18.11.0 ≤ v < 18.11.418.7.0 ≤ v < 18.10.718.1118.719.019.0.0
Affected range stops below 18.10.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.0.1, 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/595423
Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3626303
Release NotesVendor Advisory
Source: cverecord
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-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-862

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