Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab (CVE-2026-10712)
A cross-site scripting (XSS) vulnerability was identified in GitLab CE/EE affecting versions from 18.10 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1. This flaw allowed an unauthenticated user to execute arbitrary JavaScript in another user's browser session due to improper path validation under certain conditions. GitLab has released patches to remediate this issue.
AI Analysis
Technical Summary
GitLab CE/EE versions >=18.10.0 <18.11.6, >=19.0.0 <19.0.3, and >=19.1.0 <19.1.1 contain a vulnerability where improper neutralization of input during web page generation leads to cross-site scripting (XSS). This vulnerability could allow an unauthenticated attacker to execute arbitrary JavaScript in a victim's browser session by exploiting improper path validation. The issue has been fixed in versions 18.11.6, 19.0.3, and 19.1.1 respectively.
Potential Impact
An unauthenticated attacker could exploit this vulnerability to execute arbitrary JavaScript code in the context of a victim user's browser session. This could lead to session hijacking, defacement, or other malicious actions within the affected GitLab instance. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
GitLab has released official patches that fix this vulnerability in versions 18.11.6, 19.0.3, and 19.1.1. Users should upgrade to these fixed versions or later to remediate the issue. Since this is not a cloud service, remediation requires applying these updates to self-managed GitLab instances.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab (CVE-2026-10712)
Description
A cross-site scripting (XSS) vulnerability was identified in GitLab CE/EE affecting versions from 18.10 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1. This flaw allowed an unauthenticated user to execute arbitrary JavaScript in another user's browser session due to improper path validation under certain conditions. GitLab has released patches to remediate this issue.
Affected software
pkg:bitnami/gitlabRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GitLab CE/EE versions >=18.10.0 <18.11.6, >=19.0.0 <19.0.3, and >=19.1.0 <19.1.1 contain a vulnerability where improper neutralization of input during web page generation leads to cross-site scripting (XSS). This vulnerability could allow an unauthenticated attacker to execute arbitrary JavaScript in a victim's browser session by exploiting improper path validation. The issue has been fixed in versions 18.11.6, 19.0.3, and 19.1.1 respectively.
Potential Impact
An unauthenticated attacker could exploit this vulnerability to execute arbitrary JavaScript code in the context of a victim user's browser session. This could lead to session hijacking, defacement, or other malicious actions within the affected GitLab instance. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
GitLab has released official patches that fix this vulnerability in versions 18.11.6, 19.0.3, and 19.1.1. Users should upgrade to these fixed versions or later to remediate the issue. Since this is not a cloud service, remediation requires applying these updates to self-managed GitLab instances.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-gitlab-2026-10712
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-10712"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
Threat ID: 6a42ed7427e9c7971993935e
Added to database: 06/29/2026, 22:11:00 UTC
Last enriched: 09/10/2026, 23:03:11 UTC
Last updated: 09/27/2026, 13:47:42 UTC
Views: 97
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