High
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Type: advisorySources: OSV
GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 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 with developer-role permissions to execute arbitrary client-side code on behalf of a targeted user due to improper input sanitization in the Analytics Dashboard.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-10087
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:39 UTC · Revision 1
Source evidence
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
core-osv · Original sourcePublished 11 Jun 2026, 10:19 UTC
GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 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 with developer-role permissions to execute arbitrary client-side code on behalf of a targeted user due to improper input sanitization in the Analytics Dashboard.
osv:CVE-2026-10087
Complete source record
{
"id": "149cbb6429864058493756330b6332552d5e878814a0e9c4bc81f7e8983efee6",
"url": "https://osv.dev/vulnerability/CVE-2026-10087",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab",
"summary": "GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 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 with developer-role permissions to execute arbitrary client-side code on behalf of a targeted user due to improper input sanitization in the Analytics Dashboard.",
"evidence": "osv:CVE-2026-10087",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-10087",
"aliases": [
"BIT-gitlab-2026-10087",
"CVE-2026-10087"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://gitlab.com/gitlab-org/gitlab",
"type": "GIT",
"events": [
{
"introduced": "b7514f9c21c09a9ed2b258f5cfdd56c88f43864a"
},
{
"fixed": "691141944493a0faa4bc3229af2e6a8663e58653"
},
{
"introduced": "1060c7b0ff78be7c8abe8fd6d23dcb1ca493fd78"
},
{
"fixed": "9b638f3c6869a41d392cc3f77cfd68c8a06bda5f"
},
{
"introduced": "f07e3c5b3c8128be5db112e5b2b618fe31ea1b35"
},
{
"fixed": "86c99d562e4d6929fc43de673da9e48155f9ad95"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"range": [
{
"introduced": "17.1.0"
},
{
"fixed": "18.10.8"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "17.1.0"
},
{
"fixed": "18.10.8"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"range": [
{
"introduced": "18.11.0"
},
{
"fixed": "18.11.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "18.11.0"
},
{
"fixed": "18.11.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"range": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "19.0.0"
},
{
"fixed": "19.0.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v19.0.0-ee",
"v18.11.2-ee",
"v18.11.0-ee"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10087.json"
}
}
],
"modified": "2026-10-30T10:30:30.036610761Z",
"provider": "osv",
"references": [
"https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/",
"https://gitlab.com/gitlab-org/gitlab/-/work_items/601633",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10087.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-10087",
"https://hackerone.com/reports/3759090"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "GitLab",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "17.1"
},
{
"fixed": "18.10.8"
},
{
"introduced": "18.11"
},
{
"fixed": "18.11.5"
},
{
"introduced": "19.0"
},
{
"fixed": "19.0.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "17.1"
},
{
"fixed": "18.10.8"
},
{
"introduced": "18.11"
},
{
"fixed": "18.11.5"
},
{
"introduced": "19.0"
},
{
"fixed": "19.0.2"
}
],
"source": "DESCRIPTION"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10087.json"
}
},
"related_cves": [
{
"value": "CVE-2026-10087",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 504823,
"published_at": "2026-06-11T10:19:41.424+00:00"
}