{"api_version":"1","generated_at":"2026-10-23T08:12:58+00:00","cve":"CVE-2026-15723","urls":{"html":"https://cve.report/CVE-2026-15723","api":"https://cve.report/api/cve/CVE-2026-15723.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-15723","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-15723"},"summary":{"title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.","state":"PUBLISHED","assigner":"GitLab","published_at":"2026-10-22 01:16:59","updated_at":"2026-10-23 04:18:16"},"problem_types":["CWE-90","CWE-90 CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')"],"metrics":[{"version":"3.1","source":"cve@gitlab.com","type":"Secondary","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/605977","name":"https://gitlab.com/gitlab-org/gitlab/-/work_items/605977","refsource":"cve@gitlab.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://hackerone.com/reports/3852192","name":"https://hackerone.com/reports/3852192","refsource":"cve@gitlab.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","name":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","refsource":"cve@gitlab.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-15723","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15723","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 10.1 19.3.6 semver","platforms":[]},{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 19.4 19.4.3 semver","platforms":[]},{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 19.5 19.5.1 semver","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to versions 19.3.6, 19.4.3, 19.5.1 or above.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Thanks [stealthy](https://hackerone.com/stealthy) for reporting this vulnerability through our HackerOne bug bounty program","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"15723","cve":"CVE-2026-15723","epss":"0.003340000","percentile":"0.255470000","score_date":"2026-10-22","updated_at":"2026-10-23 00:07:29"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-15723","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-10-22T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-23T03:55:19.652Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","product":"GitLab","repo":"https://gitlab.com/gitlab-org/gitlab","vendor":"GitLab","versions":[{"lessThan":"19.3.6","status":"affected","version":"10.1","versionType":"semver"},{"lessThan":"19.4.3","status":"affected","version":"19.4","versionType":"semver"},{"lessThan":"19.5.1","status":"affected","version":"19.5","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Thanks [stealthy](https://hackerone.com/stealthy) for reporting this vulnerability through our HackerOne bug bounty program"}],"descriptions":[{"lang":"en","value":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-90","description":"CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-21T23:35:15.434Z","orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab"},"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/605977"},{"name":"HackerOne Bug Bounty Report #3852192","tags":["technical-description","exploit","permissions-required"],"url":"https://hackerone.com/reports/3852192"},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/"}],"solutions":[{"lang":"en","value":"Upgrade to versions 19.3.6, 19.4.3, 19.5.1 or above."}],"title":"Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab"}},"cveMetadata":{"assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","assignerShortName":"GitLab","cveId":"CVE-2026-15723","datePublished":"2026-10-21T23:35:15.434Z","dateReserved":"2026-07-14T13:04:45.612Z","dateUpdated":"2026-10-23T03:55:19.652Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-22 01:16:59","lastModifiedDate":"2026-10-23 04:18:16","problem_types":["CWE-90","CWE-90 CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')"],"metrics":{"cvssMetricV31":[{"source":"cve@gitlab.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-22T00:00:00+00:00","id":"CVE-2026-15723","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"15723","Ordinal":"1","Title":"Improper Neutralization of Special Elements used in an LDAP Quer","CVE":"CVE-2026-15723","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"15723","Ordinal":"1","NoteData":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.","Type":"Description","Title":"Improper Neutralization of Special Elements used in an LDAP Quer"}]}}}