{"id":"CVE-2026-3035","state":"PUBLISHED","title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","description":"GitLab has remediated an issue in GitLab EE affecting all versions from 11.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with project Maintainer permissions could have accessed the terminal of a protected environment they were not authorized to use due to improper authorization checks.","publishedAt":"2026-08-26T13:36:45.137Z","updatedAt":"2026-08-26T15:41:48.692Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","source":"GitLab"},"assigner":"GitLab","products":["GitLab GitLab"],"affected":[{"vendor":"GitLab","product":"GitLab","defaultStatus":"unaffected","versions":[{"version":"11.3","status":"affected","lessThan":"19.1.7","versionType":"semver"},{"version":"19.2","status":"affected","lessThan":"19.2.5","versionType":"semver"},{"version":"19.3","status":"affected","lessThan":"19.3.1","versionType":"semver"}],"repo":"git://git@gitlab.com:gitlab-org/gitlab.git","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"]}],"references":["https://hackerone.com/reports/3529751","https://gitlab.com/gitlab-org/gitlab/-/work_items/591189","https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/"],"weaknesses":["CWE-288"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3035.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3035","state":"PUBLISHED","datePublished":"2026-08-26T13:36:45.137Z","dateUpdated":"2026-08-26T15:41:48.692Z","assignerShortName":"GitLab","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","dateReserved":"2026-02-23T16:06:16.571Z"},"containers":{"cna":{"title":"Authentication Bypass Using an Alternate Path or Channel in GitLab","descriptions":[{"lang":"en","value":"GitLab has remediated an issue in GitLab EE affecting all versions from 11.3 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with project Maintainer permissions could have accessed the terminal of a protected environment they were not authorized to use due to improper authorization checks."}],"affected":[{"vendor":"GitLab","product":"GitLab","defaultStatus":"unaffected","versions":[{"version":"11.3","status":"affected","lessThan":"19.1.7","versionType":"semver"},{"version":"19.2","status":"affected","lessThan":"19.2.5","versionType":"semver"},{"version":"19.3","status":"affected","lessThan":"19.3.1","versionType":"semver"}],"repo":"git://git@gitlab.com:gitlab-org/gitlab.git","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://hackerone.com/reports/3529751","name":"HackerOne Bug Bounty Report #3529751","tags":["technical-description","exploit","permissions-required"]},{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/591189"},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-288","lang":"en","description":"CWE-288: Authentication Bypass Using an Alternate Path or Channel","type":"CWE"}]}],"providerMetadata":{"shortName":"GitLab","orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","dateUpdated":"2026-08-26T13:36:45.137Z"},"solutions":[{"lang":"en","value":"Upgrade to versions 19.1.7, 19.2.5, 19.3.1 or above."}],"credits":[{"lang":"en","value":"Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program","type":"finder"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T15:41:36.331035Z","id":"CVE-2026-3035","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-26T15:41:48.692Z"}}]}}}