{"id":"CVE-2026-3988","aliases":["BIT-gitlab-2026-3988","EUVD-2026-15937","GHSA-2jhc-hf67-8vgx"],"status":"published","title":"Inefficient Algorithmic Complexity in GitLab","description":"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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00498,"percentile":0.43123,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-407"],"published":"2026-03-25T16:33:43Z","modified":"2026-10-30T10:30:54Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["18.8.7","18.9.3","18.10.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"18.5.0"},{"fixed":"18.8.7"},{"introduced":"18.9.0"},{"fixed":"18.9.3"},{"introduced":"18.10.0"},{"fixed":"18.10.1"}]}]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/593140","tags":["Broken Link","web"]},{"url":"https://hackerone.com/reports/3597342","tags":["technical-description","exploit","permissions-required","Permissions Required","web","report"]},{"url":"https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/","tags":["Release Notes","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3988","tags":["web","advisory"]},{"url":"https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released"},{"url":"https://github.com/advisories/GHSA-2jhc-hf67-8vgx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3988.json","tags":["advisory"]},{"url":"git://git@gitlab.com:gitlab-org/gitlab.git","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-3988","title":"Inefficient Algorithmic Complexity in GitLab","description":"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.","status":"published","published":"2026-03-25T16:33:43.952Z","modified":"2026-03-25T17:21:53.191Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T13:48:58.05327Z"}],"euvd":[{"id":"EUVD-2026-15937","description":"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.","status":"published","published":"2026-03-25T16:33:43Z","modified":"2026-03-25T17:21:53Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:25:29.129467Z"}],"ghsa":[{"id":"GHSA-2jhc-hf67-8vgx","title":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18...","description":"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.","status":"published","published":"2026-03-25T18:31:55Z","modified":"2026-03-25T18:32:08Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T15:06:50.631069Z"}],"nvd":[{"id":"CVE-2026-3988","description":"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.","status":"published","published":"2026-03-25T17:17:09.553Z","modified":"2026-06-17T10:44:34.603Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T14:12:11.077116Z"}],"osv":[{"id":"CVE-2026-3988","title":"Inefficient Algorithmic Complexity in GitLab","description":"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.","status":"published","published":"2026-03-25T16:33:43.952Z","modified":"2026-10-30T10:30:54.086548725Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T15:45:03.040464Z"},{"id":"BIT-gitlab-2026-3988","title":"Inefficient Algorithmic Complexity in GitLab","description":"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.","status":"published","published":"2026-03-27T12:15:17.809Z","modified":"2026-09-08T08:47:46.527393242Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}