CVE-2026-110264
Full vulnerability record from the local CVENow database.
Description
An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.
Severity
CRITICAL
CVSS score
10.0
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-10-22 01:16:57.603000
Last modified
2026-11-04 23:10:00.223000
View original CVE JSON
{
"id": "CVE-2026-110264",
"sourceIdentifier": "[email protected]",
"published": "2026-10-22T01:16:57.603",
"lastModified": "2026-11-04T23:10:00.223",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression."
},
{
"lang": "es",
"value": "Se ha descubierto un problema en GitLab CE/EE que afecta a todas las versiones desde la 7.0 y anteriores a la 18.11.13, la 19.0 y anteriores a la 19.0.10, la 19.1 y anteriores a la 19.1.9, la 19.2 y anteriores a la 19.2.9, la 19.3 y anteriores a la 19.3.6, la 19.4 y anteriores a la 19.4.3, y la 19.5 y anteriores a la 19.5.1 que, bajo ciertas condiciones, podría haber permitido a un usuario no autenticado ejecutar código arbitrario en el servidor de GitLab debido a un desbordamiento de entero al compilar una expresión regular especialmente diseñada."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "GitLab",
"product": "GitLab",
"defaultStatus": "unaffected",
"cpes": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
],
"repo": "https://gitlab.com/gitlab-org/gitlab",
"versions": [
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"lessThan": "18.11.13",
"versionType": "semver",
"status": "affected"
},
{
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"versionType": "semver",
"status": "affected"
},
{
"version": "19.1",
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"versionType": "semver",
"status": "affected"
},
{
"version": "19.2",
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"versionType": "semver",
"status": "affected"
},
{
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}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"baseScore": 10.0,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 6.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"id": "CVE-2026-110264",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-190"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"references": [
{
"url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/633633",
"source": "[email protected]",
"tags": [
"Permissions Required"
]
},
{
"url": "https://hackerone.com/reports/4093475",
"source": "[email protected]",
"tags": [
"Permissions Required"
]
},
{
"url": "https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
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}