CVE-2026-10086

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-10086", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-05-29T12:04:39.988Z", "datePublished": "2026-06-25T05:03:58.451Z", "dateUpdated": "2026-06-26T03:55:20.860Z"}, "containers": {"cna": {"title": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab", "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input."}], "affected": [{"vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "versions": [{"version": "16.4", "status": "affected", "lessThan": "18.11.6", "versionType": "semver"}, {"version": "19.0", "status": "affected", "lessThan": "19.0.3", "versionType": "semver"}, {"version": "19.1", "status": "affected", "lessThan": "19.1.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/601634"}, {"url": "https://hackerone.com/reports/3734800", "name": "HackerOne Bug Bounty Report #3734800", "tags": ["technical-description", "exploit", "permissions-required"]}, {"url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-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:C/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}], "solutions": [{"lang": "en", "value": "Upgrade to versions 18.11.6, 19.0.3, 19.1.1 or above."}], "credits": [{"lang": "en", "value": "Thanks [yvvdwf](https://hackerone.com/yvvdwf) for reporting this vulnerability through our HackerOne bug bounty program", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-06-25T05:03:58.451Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-10086"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-26T03:55:20.860Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-10086", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-25T12:47:29.889506Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T12:47:43.439Z"}}], "cna": {"title": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab", "credits": [{"lang": "en", "type": "finder", "value": "Thanks [yvvdwf](https://hackerone.com/yvvdwf) for reporting this vulnerability through our HackerOne bug bounty program"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "vendor": "GitLab", "product": "GitLab", "versions": [{"status": "affected", "version": "16.4", "lessThan": "18.11.6", "versionType": "semver"}, {"status": "affected", "version": "19.0", "lessThan": "19.0.3", "versionType": "semver"}, {"status": "affected", "version": "19.1", "lessThan": "19.1.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Upgrade to versions 18.11.6, 19.0.3, 19.1.1 or above."}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/601634"}, {"url": "https://hackerone.com/reports/3734800", "name": "HackerOne Bug Bounty Report #3734800", "tags": ["technical-description", "exploit", "permissions-required"]}, {"url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/"}], "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-06-25T05:03:58.451Z"}}}, "cveMetadata": {"cveId": "CVE-2026-10086", "state": "PUBLISHED", "dateUpdated": "2026-06-26T03:55:20.860Z", "dateReserved": "2026-05-29T12:04:39.988Z", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "datePublished": "2026-06-25T05:03:58.451Z", "assignerShortName": "GitLab"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "vendor": "GitLab", "versions": [{"lessThan": "18.11.6", "status": "affected", "version": "16.4", "versionType": "semver"}, {"lessThan": "19.0.3", "status": "affected", "version": "19.0", "versionType": "semver"}, {"lessThan": "19.1.1", "status": "affected", "version": "19.1", "versionType": "semver"}]}], "source": "cve@gitlab.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "B6442921-C30A-4345-B0C2-14896044D93E", "versionEndExcluding": "18.11.6", "versionStartIncluding": "16.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "D398AA66-56F3-4ED2-AD85-E2C094EE577E", "versionEndExcluding": "19.0.3", "versionStartIncluding": "19.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:19.1.0:*:*:*:enterprise:*:*:*", "matchCriteriaId": "49957E0D-C888-4AB1-9C15-8CD6E55454B1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's session, due to improper sanitization of user-supplied input."}, {"lang": "es", "value": "GitLab ha remediado un problema en GitLab EE que afecta a todas las versiones desde la 16.4 anterior a la 18.11.6, la 19.0 anterior a la 19.0.3 y la 19.1 anterior a la 19.1.1 que bajo ciertas condiciones podr\u00eda haber permitido a un usuario autenticado con permisos de rol de desarrollador ejecutar c\u00f3digo arbitrario del lado del cliente en el contexto de la sesi\u00f3n de otro usuario, debido a una sanitizaci\u00f3n inadecuada de la entrada proporcionada por el usuario."}], "id": "CVE-2026-10086", "lastModified": "2026-10-25T23:10:00.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "cve@gitlab.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-10086", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-25T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-06-25T05:16:50.530", "references": [{"source": "cve@gitlab.com", "tags": ["Patch", "Release Notes", "Vendor Advisory"], "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/"}, {"source": "cve@gitlab.com", "tags": ["Broken Link"], "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/601634"}, {"source": "cve@gitlab.com", "tags": ["Permissions Required"], "url": "https://hackerone.com/reports/3734800"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "cve@gitlab.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16.4,18.11.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[19.0,19.0.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[19.1,19.1.1)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "GitLab", "source": "cna", "vendor": "GitLab"}, "product": "gitlab", "vendor": "gitlab"}], "created": "2026-06-25T06:30:16.572432+00:00", "updated": "2026-06-25T08:15:05.384165+00:00", "vendors": ["gitlab", "gitlab$PRODUCT$gitlab"]}