CVE-2026-16627

Analyzed Analyzed - Analysis Complete

Privilege Escalation in GitLab CE/EE via HTML Sanitization Flaw

Publication date: 2026-08-12

Last updated on: 2026-08-19

Assigner: GitLab Inc.

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to escalate privileges due to improper sanitization of HTML content rendered in a CI job modal.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-12

Last Modified

2026-08-19

Generated

2026-09-02

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-31

NVD

CVE-2026-16627

EUVD

EUVD-2026-57392

Affected Vendors & Products

Vendor	Product	Version / Range
gitlab	gitlab	From 19.2.0 (inc) to 19.2.2 (exc)
gitlab	gitlab	From 19.2.0 (inc) to 19.2.2 (exc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

This vulnerability in GitLab CE/EE (versions 19.2 before 19.2.2) allows an authenticated user with developer-role permissions to escalate privileges. It occurs due to improper sanitization of HTML content rendered in a CI job modal, potentially enabling unauthorized actions.

Detection Guidance

This vulnerability can be detected by checking the GitLab version installed on your system. If you are running a version of GitLab CE/EE from 19.2 before 19.2.2, your system is vulnerable. Run the command 'gitlab-rake gitlab:env:info' to check the version.

Impact Analysis

An attacker with developer access could exploit this to gain higher privileges, potentially modifying system settings, accessing sensitive data, or performing unauthorized actions within GitLab projects.

Compliance Impact

The vulnerability allows privilege escalation through improper HTML sanitization in CI job modals, which could lead to unauthorized access or data exposure. This may impact compliance with GDPR (data protection) or HIPAA (health data security) by increasing risks of unauthorized data access or modification. However, specific compliance impacts depend on deployment context and mitigations applied.

Mitigation Strategies

Upgrade GitLab CE/EE to version 19.2.2 or later to address the improper HTML sanitization issue that allows privilege escalation.

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