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CVE-2026-0595 is an HTML injection vulnerability in GitLab Community Edition and Enterprise Edition test case titles. It affects all versions from 13.9 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4. Under certain conditions, an authenticated user can inject HTML through a test case title in a way that causes unauthorized email addresses to be added to another user's account. The flaw is rooted in insufficient neutralization of user-controlled input rendered in the application interface, enabling manipulation of account-related actions through injected markup.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
GitLab HTML injection vulnerability in test case titles that could enable account modification (adding unauthorized email addresses).
HTML injection in test case titles that could allow an authenticated attacker to add unauthorized email addresses to user accounts under certain conditions.
An HTML injection vulnerability in GitLab test case titles that could allow an authenticated attacker to add unauthorized email addresses to user accounts.
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.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.