{"id":"CVE-2026-105711","state":"PUBLISHED","title":"Use of Cache Containing Sensitive Information in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when a merge request in a public project referenced a confidential issue from a private project, an authenticated user with no project membership could have read the confidential issue's title, due to a viewer-independent fragment cache key that incorrectly shared per-user-redacted rendered content across all users.","publishedAt":"2026-10-21T23:34:30.427Z","updatedAt":"2026-10-30T17:18:23.616Z","severity":{"score":3.5,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","source":"GitLab"},"assigner":"GitLab","products":["GitLab GitLab"],"affected":[{"vendor":"GitLab","product":"GitLab","defaultStatus":"unaffected","versions":[{"version":"15.0","status":"affected","lessThan":"19.3.6","versionType":"semver"},{"version":"19.4","status":"affected","lessThan":"19.4.3","versionType":"semver"},{"version":"19.5","status":"affected","lessThan":"19.5.1","versionType":"semver"}],"repo":"https://gitlab.com/gitlab-org/gitlab","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"]}],"references":["https://gitlab.com/gitlab-org/gitlab/-/work_items/632207","https://hackerone.com/reports/3963293","https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"],"weaknesses":["CWE-524"],"ingestedAt":"2026-10-30T17:24:06.930Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105711.json","commit":"e8328137ecf4069b095dab9de0403e0e5a96b5ec","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105711","state":"PUBLISHED","datePublished":"2026-10-21T23:34:30.427Z","dateUpdated":"2026-10-30T17:18:23.616Z","assignerShortName":"GitLab","assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","dateReserved":"2026-10-05T18:35:06.853Z"},"containers":{"cna":{"title":"Use of Cache Containing Sensitive Information in GitLab","descriptions":[{"lang":"en","value":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when a merge request in a public project referenced a confidential issue from a private project, an authenticated user with no project membership could have read the confidential issue's title, due to a viewer-independent fragment cache key that incorrectly shared per-user-redacted rendered content across all users."}],"affected":[{"vendor":"GitLab","product":"GitLab","defaultStatus":"unaffected","versions":[{"version":"15.0","status":"affected","lessThan":"19.3.6","versionType":"semver"},{"version":"19.4","status":"affected","lessThan":"19.4.3","versionType":"semver"},{"version":"19.5","status":"affected","lessThan":"19.5.1","versionType":"semver"}],"repo":"https://gitlab.com/gitlab-org/gitlab","cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/632207"},{"url":"https://hackerone.com/reports/3963293","name":"HackerOne Bug Bounty Report #3963293","tags":["technical-description","exploit","permissions-required"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-524","lang":"en","description":"CWE-524: Use of Cache Containing Sensitive Information","type":"CWE"}]}],"providerMetadata":{"shortName":"GitLab","orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","dateUpdated":"2026-10-21T23:34:30.427Z"},"solutions":[{"lang":"en","value":"Upgrade to versions 19.3.6, 19.4.3, 19.5.1 or above."}],"credits":[{"lang":"en","value":"Thanks [20kilograma](https://hackerone.com/20kilograma) for reporting this vulnerability through our HackerOne bug bounty program","type":"finder"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-105711","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-30T16:38:36.737514Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T17:18:23.616Z"}}]}}}