HTML injection denial of service in GitLab CI/CD Catalog
CVE-2026-10733 is an HTML injection issue in GitLab Community Edition (CE) and Enterprise Edition (EE) affecting all versions from 17.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2. The flaw is described as improper sanitization in the CI/CD Catalog page. By supplying crafted content that is not properly sanitized before being rendered or processed by the Catalog page, an authenticated user can trigger a denial-of-service condition affecting that page. The available source material identifies the issue as an HTML injection bug and attributes the root cause to improper sanitization, but does not provide lower-level implementation details such as the exact vulnerable function or code path.
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Exploits
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No public exploit code observed for this vulnerability.
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Recent activity
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HTML injection vulnerability affecting the GitLab CI/CD Catalog page.
HTML injection vulnerability in GitLab CE/EE CI/CD Catalog that could allow an authenticated user to cause denial of service on the catalog page.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
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