CVE-2026-3553

Analyzed Analyzed - Analysis Complete

Authenticated Information Exposure in GitLab CE/EE

Publication date: 2026-06-11

Last updated on: 2026-06-15

Assigner: GitLab Inc.

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-11

Last Modified

2026-06-15

Generated

2026-07-01

AI Q&A

2026-06-11

EPSS Evaluated

2026-06-30

NVD

CVE-2026-3553

EUVD

EUVD-2026-36232

Affected Vendors & Products

Vendor	Product	Version / Range
gitlab	gitlab	From 18.11.0 (inc) to 18.11.5 (exc)
gitlab	gitlab	From 19.0.0 (inc) to 19.0.2 (exc)
gitlab	gitlab	From 18.11.0 (inc) to 18.11.5 (exc)
gitlab	gitlab	From 19.0.0 (inc) to 19.0.2 (exc)
gitlab	gitlab	From 12.0.0 (inc) to 18.10.8 (exc)
gitlab	gitlab	From 12.0.0 (inc) to 18.10.8 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability in GitLab CE/EE versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 could allow an authenticated user to access confidential issue details due to incorrect authorization checks under certain conditions.

Impact Analysis

The impact of this vulnerability is that an authenticated user might gain unauthorized access to confidential issue details, potentially exposing sensitive information that should be restricted.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.10.8 or later if you are using the 18.10 series, 18.11.5 or later for the 18.11 series, or 19.0.2 or later for the 19.0 series.

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