CVE-2026-0595

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[13.9,18.6.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18.7,18.7.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18.8,18.8.4)"}}], "product": "gitlab", "vendor": "gitlab"}], "analysis": {"en": {"generated_at": "2026-04-17T20:22:37.070492+00:00", "value": {"mitigation_remediation": ["Upgrade GitLab to version 18.6.6, 18.7.4, 18.8.4 or later.", "Restrict user permissions so that only trusted users can create or edit test case titles until the patch is applied.", "Review audit logs for suspicious test case edits and detect unauthorized email address additions."], "summary": {"action": "Immediate patch", "impact": "Account compromise via XSS"}, "threat_synthesis": {"affected_systems": "The defect affects GitLab Community Edition and Enterprise Edition in all releases from 13.9 through the last pre\u2011patch versions (13.9\u202f\u2264\u202fv\u202f<\u202f18.6.6,\u202f18.7\u202f<\u202fv\u202f<\u202f18.7.4,\u202f18.8\u202f<\u202fv\u202f<\u202f18.8.4). Users running these versions are susceptible.", "description_and_impact": "GitLab contains a cross\u2011site scripting flaw that lets an authenticated user inject malicious HTML into test case titles. The injected script can manipulate the victim\u2019s account to add unauthorized email addresses, enabling an attacker to alter account settings or redirect communication. This vulnerability is classified as CWE\u201179 and can lead to unauthorized account modification.", "risk_and_exploitability": "The base CVSS score is 7.3, indicating a high severity, yet the EPSS score is less than 1\u202f%, showing a low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog. An attacker must be authenticated and have permission to create or edit test case titles; the attack is therefore limited to users with at least project maintainer or higher privileges. Once the script is executed in the victim\u2019s browser, the attacker can add additional email addresses to the account."}}}}, "created": "2026-02-11T21:45:44.708895+00:00", "updated": "2026-04-17T20:30:15.811533+00:00", "vendors": ["gitlab", "gitlab$PRODUCT$gitlab"]}