FKIE_CVE-2026-1090
Vulnerability from fkie_nvd - Published: 2026-03-11 16:16 - Updated: 2026-03-13 12:36
Severity ?
8.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.6 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user, when the `markdown_placeholders` feature flag was enabled, to inject JavaScript in a browser due to improper sanitization of placeholder content in markdown processing.
References
| URL | Tags | ||
|---|---|---|---|
| cve@gitlab.com | https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/ | Release Notes, Vendor Advisory | |
| cve@gitlab.com | https://gitlab.com/gitlab-org/gitlab/-/work_items/586478 | Broken Link | |
| cve@gitlab.com | https://hackerone.com/reports/3502450 | Permissions Required |
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"lastModified": "2026-03-13T12:36:26.963",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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