CVE-2026-2995 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab

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HIGH

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab

Published Mar 25, 2026

7.7

HIGH

CVSS 3.1

EPSS 0.33%

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 15.4 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to add email addresses to targeted user accounts due to improper sanitization of HTML content.

Affected products

Vendor GitLab Product GitLab Default
unaffected
- Version
  15.4
  Status
  affected
  Constraints
  <18.8.7
- Version
  18.10
  Status
  affected
  Constraints
  <18.10.1
- Version
  18.9
  Status
  affected
  Constraints
  <18.9.3

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

GitLab

unaffected

Version	Status	Constraints
15.4	affected	<18.8.7
18.10	affected	<18.10.1
18.9	affected	<18.9.3

Remediation

Vendor solution

Upgrade to versions 18.8.7, 18.9.3, 18.10.1 or above.

Weaknesses (2)

CWE-79

Cross-site Scripting (XSS)

CWE-80

References (3)

https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/591065
Broken Link
https://hackerone.com/reports/3564600
technical-descriptionexploitpermissions-requiredPermissions Required

Link	Providers	Tags
https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/		Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/591065		Broken Link
https://hackerone.com/reports/3564600		technical-descriptionexploitpermissions-requiredPermissions Required