CVE-2026-15217: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 19.0.6, 19.1 before 19.1.4, and 19.2 before 19.2.2 that under certain conditions could have allowed cross-site scripting due to improper neutralization of user-controlled values rendered in table cell content by an analytics dashboard component.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 19.0.6 - Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 19.1.4 - Upgrade
Upgrade
GitLab CE/EEto a version that resolves this vulnerability.Fixed in 19.2.2
Event History
Frequently Asked Questions
What is the severity of CVE-2026-15217?
The severity of CVE-2026-15217 is rated high with a score of 8.7.
How do I fix CVE-2026-15217?
To fix CVE-2026-15217, update to GitLab versions 19.0.6, 19.1.4, or 19.2.2 or later.
What type of vulnerability is CVE-2026-15217?
CVE-2026-15217 is a Cross-site Scripting (XSS) vulnerability.
Which versions of GitLab are affected by CVE-2026-15217?
CVE-2026-15217 affects GitLab CE/EE versions before 19.0.6, 19.1.4, and 19.2.2.
What could happen if CVE-2026-15217 is exploited?
Exploitation of CVE-2026-15217 could allow attackers to execute arbitrary scripts in the context of the user's session.