{"api_version":"1","generated_at":"2026-06-11T18:46:05+00:00","cve":"CVE-2026-8589","urls":{"html":"https://cve.report/CVE-2026-8589","api":"https://cve.report/api/cve/CVE-2026-8589.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-8589","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-8589"},"summary":{"title":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab","description":"GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.","state":"PUBLISHED","assigner":"GitLab","published_at":"2026-06-11 12:16:32","updated_at":"2026-06-11 17:28:22"},"problem_types":["CWE-79","CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"8.7","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"cve@gitlab.com","type":"Secondary","score":"7.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"7.3","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/","name":"https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/","refsource":"cve@gitlab.com","tags":["Release Notes"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/600099","name":"https://gitlab.com/gitlab-org/gitlab/-/work_items/600099","refsource":"cve@gitlab.com","tags":["Issue Tracking"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://hackerone.com/reports/3722842","name":"https://hackerone.com/reports/3722842","refsource":"cve@gitlab.com","tags":["Permissions Required"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-8589","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8589","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 13.1.4 18.10.8 semver","platforms":[]},{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 18.11 18.11.5 semver","platforms":[]},{"source":"CNA","vendor":"GitLab","product":"GitLab","version":"affected 19.0 19.0.2 semver","platforms":[]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to versions 18.10.8, 18.11.5, 19.0.2 or above.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program","lang":"en"}],"nvd_cpes":[{"cve_year":"2026","cve_id":"8589","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"gitlab","cpe5":"gitlab","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"community","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2026","cve_id":"8589","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"gitlab","cpe5":"gitlab","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"enterprise","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-8589","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-06-11T12:27:53.213287Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-06-11T12:28:51.255Z","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":"git://git@gitlab.com:gitlab-org/gitlab.git","vendor":"GitLab","versions":[{"lessThan":"18.10.8","status":"affected","version":"13.1.4","versionType":"semver"},{"lessThan":"18.11.5","status":"affected","version":"18.11","versionType":"semver"},{"lessThan":"19.0.2","status":"affected","version":"19.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program"}],"descriptions":[{"lang":"en","value":"GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-11T10:20:01.515Z","orgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","shortName":"GitLab"},"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/600099"},{"name":"HackerOne Bug Bounty Report #3722842","tags":["technical-description","exploit","permissions-required"],"url":"https://hackerone.com/reports/3722842"},{"url":"https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/"}],"solutions":[{"lang":"en","value":"Upgrade to versions 18.10.8, 18.11.5, 19.0.2 or above."}],"title":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab"}},"cveMetadata":{"assignerOrgId":"ceab7361-8a18-47b1-92ba-4d7d25f6715a","assignerShortName":"GitLab","cveId":"CVE-2026-8589","datePublished":"2026-06-11T10:20:01.515Z","dateReserved":"2026-05-14T08:04:55.813Z","dateUpdated":"2026-06-11T12:28:51.255Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-11 12:16:32","lastModifiedDate":"2026-06-11 17:28:22","problem_types":["CWE-79","CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":{"cvssMetricV31":[{"source":"cve@gitlab.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1,"impactScore":5.8},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":5.8}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","versionStartIncluding":"13.1.4","versionEndExcluding":"18.10.8","matchCriteriaId":"6BD9809B-9486-4D2B-A0D0-8E567AF86754"},{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"13.1.4","versionEndExcluding":"18.10.8","matchCriteriaId":"BA1FE381-79F3-49A7-89DC-3EC71D9A2FA2"},{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","versionStartIncluding":"18.11.0","versionEndExcluding":"18.11.5","matchCriteriaId":"D3442E29-F164-40E0-B972-F0EEE8ED4FD1"},{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"18.11.0","versionEndExcluding":"18.11.5","matchCriteriaId":"7FB0D7FE-9A4F-45D8-B564-31DF9F2F4066"},{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","versionStartIncluding":"19.0.0","versionEndExcluding":"19.0.2","matchCriteriaId":"A6FAB200-DFB3-42FC-A901-8E5C0A3CA706"},{"vulnerable":true,"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"19.0.0","versionEndExcluding":"19.0.2","matchCriteriaId":"1A666CA8-8D31-4765-87ED-D0F56E9DAFF0"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"8589","Ordinal":"1","Title":"Improper Neutralization of Input During Web Page Generation ('Cr","CVE":"CVE-2026-8589","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"8589","Ordinal":"1","NoteData":"GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.","Type":"Description","Title":"Improper Neutralization of Input During Web Page Generation ('Cr"}]}}}