CVE-2020-26409

{"containers": {"cna": {"affected": [{"product": "GitLab CE/EE", "vendor": "GitLab", "versions": [{"status": "affected", "version": ">=10.3"}, {"status": "affected", "version": "<13.4.7"}, {"status": "affected", "version": ">=13.5"}, {"status": "affected", "version": "<13.5.5"}, {"status": "affected", "version": ">=13.6"}, {"status": "affected", "version": "<13.6.2"}]}], "credits": [{"lang": "en", "value": "Thanks [misha98857](https://hackerone.com/misha98857) for reporting this vulnerability through our HackerOne bug bounty program"}], "descriptions": [{"lang": "en", "value": "A DOS vulnerability exists in Gitlab CE/EE >=10.3, <13.4.7,>=13.5, <13.5.5,>=13.6, <13.6.2 that allows an attacker to trigger uncontrolled resource by bypassing input validation in markdown fields."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Uncontrolled resource consumption in GitLab", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-12-11T01:17:28.000Z", "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626"}, {"tags": ["x_refsource_MISC"], "url": "https://hackerone.com/reports/990461"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@gitlab.com", "ID": "CVE-2020-26409", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "GitLab CE/EE", "version": {"version_data": [{"version_value": ">=10.3"}, {"version_value": "<13.4.7"}, {"version_value": ">=13.5"}, {"version_value": "<13.5.5"}, {"version_value": ">=13.6"}, {"version_value": "<13.6.2"}]}}]}, "vendor_name": "GitLab"}]}}, "credit": [{"lang": "eng", "value": "Thanks [misha98857](https://hackerone.com/misha98857) for reporting this vulnerability through our HackerOne bug bounty program"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A DOS vulnerability exists in Gitlab CE/EE >=10.3, <13.4.7,>=13.5, <13.5.5,>=13.6, <13.6.2 that allows an attacker to trigger uncontrolled resource by bypassing input validation in markdown fields."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Uncontrolled resource consumption in GitLab"}]}]}, "references": {"reference_data": [{"name": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626", "refsource": "MISC", "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626"}, {"name": "https://hackerone.com/reports/990461", "refsource": "MISC", "url": "https://hackerone.com/reports/990461"}, {"name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json", "refsource": "CONFIRM", "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T15:56:04.626Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://hackerone.com/reports/990461"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json"}]}]}, "cveMetadata": {"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "assignerShortName": "GitLab", "cveId": "CVE-2020-26409", "datePublished": "2020-12-11T01:17:28.000Z", "dateReserved": "2020-10-01T00:00:00.000Z", "dateUpdated": "2024-08-04T15:56:04.626Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "GitLab CE/EE", "vendor": "GitLab", "versions": [{"status": "affected", "version": ">=10.3"}, {"status": "affected", "version": "<13.4.7"}, {"status": "affected", "version": ">=13.5"}, {"status": "affected", "version": "<13.5.5"}, {"status": "affected", "version": ">=13.6"}, {"status": "affected", "version": "<13.6.2"}]}], "source": "cve@gitlab.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "BD344029-BC42-4233-AA0F-37DC87F8AB1F", "versionEndExcluding": "13.4.7", "versionStartIncluding": "10.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "512D9B32-3BDA-49DD-BB42-EAD4270B5FDD", "versionEndExcluding": "13.4.7", "versionStartIncluding": "10.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "468AFC4C-4AFE-4502-AE04-CEC567CC9454", "versionEndExcluding": "13.5.5", "versionStartIncluding": "13.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "C03EE1D3-7824-43A8-ACA2-7EE7EA9B638E", "versionEndExcluding": "13.5.5", "versionStartIncluding": "13.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "8A470CCF-C038-44D4-AB14-B9134C0E7ABC", "versionEndExcluding": "13.6.2", "versionStartIncluding": "13.6.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "63A5C9B5-F86B-4066-8042-865AB4DD4859", "versionEndExcluding": "13.6.2", "versionStartIncluding": "13.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A DOS vulnerability exists in Gitlab CE/EE >=10.3, <13.4.7,>=13.5, <13.5.5,>=13.6, <13.6.2 that allows an attacker to trigger uncontrolled resource by bypassing input validation in markdown fields."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de DOS en Gitlab CE/EE versiones posteriores a 10.3 incluy\u00e9ndola, versiones anteriores a 13.4.7, versiones posteriores a 13.5 incluy\u00e9ndola, versiones anteriores a 13.5.5, versiones posteriores a 13.6 incluy\u00e9ndola, versiones anteriores 13.6.2, que permite a un atacante activar un recurso no controlado al omitir la comprobaci\u00f3n de entrada en los campos markdown"}], "id": "CVE-2020-26409", "lastModified": "2026-06-17T03:08:05.143", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cve@gitlab.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-11T02:15:11.490", "references": [{"source": "cve@gitlab.com", "tags": ["Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json"}, {"source": "cve@gitlab.com", "tags": ["Broken Link"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626"}, {"source": "cve@gitlab.com", "tags": ["Permissions Required"], "url": "https://hackerone.com/reports/990461"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26409.json"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/259626"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "https://hackerone.com/reports/990461"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}