{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3988","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","state":"PUBLISHED","assignerShortName":"GitLab","dateReserved":"2026-03-11T15:37:07.048Z","datePublished":"2026-03-25T16:33:43.952Z","dateUpdated":"2026-03-25T17:21:53.191Z"},"containers":{"cna":{"title":"Inefficient Algorithmic Complexity in GitLab","descriptions":[{"lang":"en","value":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing."}],"affected":[{"vendor":"GitLab","product":"GitLab","repo":"git://git@gitlab.com:gitlab-org/gitlab.git","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"versions":[{"version":"18.5","status":"affected","lessThan":"18.8.7","versionType":"semver"},{"version":"18.9","status":"affected","lessThan":"18.9.3","versionType":"semver"},{"version":"18.10","status":"affected","lessThan":"18.10.1","versionType":"semver"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-407: Inefficient Algorithmic Complexity","cweId":"CWE-407","type":"CWE"}]}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/593140"},{"url":"https://hackerone.com/reports/3597342","name":"HackerOne Bug Bounty Report #3597342","tags":["technical-description","exploit","permissions-required"]},{"url":"https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"solutions":[{"lang":"en","value":"Upgrade to versions 18.8.7, 18.9.3, 18.10.1 or above."}],"credits":[{"lang":"en","value":"Thanks [svalkanov](https://hackerone.com/svalkanov) for reporting this vulnerability through our HackerOne bug bounty program","type":"finder"}],"providerMetadata":{"orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab","dateUpdated":"2026-03-25T16:33:43.952Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T17:21:45.431064Z","id":"CVE-2026-3988","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-25T17:21:53.191Z"}}]}}