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CVE-2026-1090

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CVE-2026-1090

Published: Mar 11, 2026

Modified: Mar 12, 2026

PUBLISHED

CVSS v3.1

8.7

HIGH

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user, when the `markdown_placeholders` feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.

VendorProductVersions

GitLab

GitLab

affected
10.6 - < 18.7.6
affected
18.8 - < 18.8.6
affected
18.9 - < 18.9.2

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

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