CVE-2026-0595
Analyzed Analyzed - Analysis Complete
HTML Injection in GitLab Allows Unauthorized Email Addition

Publication date: 2026-02-11

Last updated on: 2026-02-12

Assigner: GitLab Inc.

Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to add unauthorized email addresses to victim accounts through HTML injection in test case titles.
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Meta Information
Published
2026-02-11
Last Modified
2026-02-12
Generated
2026-06-16
AI Q&A
2026-02-11
EPSS Evaluated
2026-06-14
NVD
CVE-2026-0595
EUVD
EUVD-2026-6217
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
gitlab gitlab From 18.7.0 (inc) to 18.7.4 (exc)
gitlab gitlab From 18.8.0 (inc) to 18.8.4 (exc)
gitlab gitlab From 18.7.0 (inc) to 18.7.4 (exc)
gitlab gitlab From 18.8.0 (inc) to 18.8.4 (exc)
gitlab gitlab From 13.9.0 (inc) to 18.6.6 (exc)
gitlab gitlab From 13.9.0 (inc) to 18.6.6 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability in GitLab CE/EE affects versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4. Under certain conditions, an authenticated user could exploit HTML injection in test case titles to add unauthorized email addresses to victim accounts.

Impact Analysis

The vulnerability allows an authenticated user to add unauthorized email addresses to other users' accounts. This could lead to unauthorized access or manipulation of account-related communications, potentially compromising account integrity and user privacy.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should upgrade GitLab CE/EE to a fixed version. Specifically, update to version 18.6.6 or later if you are using the 18.6 branch, 18.7.4 or later if using the 18.7 branch, or 18.8.4 or later if using the 18.8 branch.

This will prevent authenticated users from exploiting the HTML injection vulnerability that could allow unauthorized addition of email addresses to victim accounts.

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