Vulnerability · CVE-2026-0752
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could ha
Published Feb 25, 2026 · catalog updated Jun 17, 2026 · GitLab has remediated an
Check if you run it
No confirmed exploitation is on record for CVE-2026-0752. EPSS is 0.32%. Act only if a listed version of GitLab has remediated an is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (GitLab has remediated an).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium6.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.32%
- Remediation
- Advisory link
- Affected products
- cpe gitlab/gitlab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe gitlab/gitlab18.9.0
How to fix CVE-2026-0752
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-0752. EPSS is 0.32%. Act only if a listed version of GitLab has remediated an is installed.
Which versions are affected?
Compare what you have installed with 18.9.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-79: Cross-site Scripting (XSS). EPSS 0.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Feb 25, 2026 · GitLab Security Releases
Detected
On February 25, 2026, we released versions 18.9.1, 18.8.5, 18.7.5 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important bug and security fixes, and we strongly recommend that all self-managed GitLab installations be upgraded to one of these versions immediately. GitLab.com is already running the patched version. GitLab Dedicated customers do not need to ta
Jun 17, 2026 · NIST NVD
Updated
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.
Sources
- CVE.orgVulnerability recordCVE-2026-0752
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-0752
30-day exploitation probability 0.3%
first.org - GitLab Security ReleasesVendor advisoryCVE-2026-0752
On February 25, 2026, we released versions 18.9.1, 18.8.5, 18.7.5 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important bug and security fixes, and we strongly recommend that all self-managed GitLab installations be upgraded to one of the
docs.gitlab.com - NIST NVDVulnerability recordCVE-2026-0752
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.