{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12635", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-06-18T15:33:33.153Z", "datePublished": "2026-06-25T04:33:34.156Z", "dateUpdated": "2026-06-25T04:33:34.156Z"}, "containers": {"cna": {"title": "Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab", "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation."}], "affected": [{"vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "versions": [{"version": "8.3", "status": "affected", "lessThan": "18.11.6", "versionType": "semver"}, {"version": "19.0", "status": "affected", "lessThan": "19.0.3", "versionType": "semver"}, {"version": "19.1", "status": "affected", "lessThan": "19.1.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action", "cweId": "CWE-350", "type": "CWE"}]}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/594321"}, {"url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 0, "baseSeverity": "NONE"}}], "solutions": [{"lang": "en", "value": "Upgrade to versions 18.11.6, 19.0.3, 19.1.1 or above."}], "credits": [{"lang": "en", "value": "This vulnerability has been discovered internally by GitLab team member F\u00e9lix Veillette-Potvin", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-06-25T04:33:34.156Z"}}}}

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{"created": "2026-06-25T07:00:11.930202+00:00", "updated": "2026-06-25T07:00:11.930210+00:00", "vendors": []}