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CVE-2026-3553

Incorrect Authorization in GitLab

LOW
3.1
CVSS Score
Published: June 11, 2026 at 10:21 AM UTC
Updated: June 17, 2026 at 10:43 AM UTC
1 product affected across 1 vendorGitLab

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Severity
LOW3.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to incorrect authorization checks.

Affected

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

GitLab· GitLabmaven
95%
12.0 ≤ v < 18.10.812.0.0 ≤ v < 18.10.818.11 ≤ v < 18.11.518.11.0 ≤ v < 18.11.519.0 ≤ v < 19.0.219.0.0 ≤ v < 19.0.212.018.1119.0
Affected range stops below 18.10.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.11.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3578216
Issue Tracking
Source: cverecord
https://gitlab.com/gitlab-org/gitlab/-/work_items/592295
Release Notes
Source: cverecord
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

3.1LOWGitLab
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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