{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2745", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2026-02-19T13:36:18.700Z", "datePublished": "2026-03-25T16:34:18.860Z", "dateUpdated": "2026-03-26T03:55:31.559Z"}, "containers": {"cna": {"title": "Authentication Bypass Using an Alternate Path or Channel in GitLab", "descriptions": [{"lang": "en", "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 7.11 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to bypass WebAuthn two-factor authentication and gain unauthorized access to user accounts due to inconsistent input validation in the authentication process."}], "affected": [{"vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "versions": [{"version": "7.11", "status": "affected", "lessThan": "18.8.7", "versionType": "semver"}, {"version": "18.9", "status": "affected", "lessThan": "18.9.3", "versionType": "semver"}, {"version": "18.10", "status": "affected", "lessThan": "18.10.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-288: Authentication Bypass Using an Alternate Path or Channel", "cweId": "CWE-288", "type": "CWE"}]}], "references": [{"url": "https://hackerone.com/reports/3557844", "name": "HackerOne Bug Bounty Report #3557844", "tags": ["technical-description", "exploit", "permissions-required"]}, {"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/590810"}, {"url": "https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Upgrade to versions 18.8.7, 18.9.3, 18.10.1 or above."}], "credits": [{"lang": "en", "value": "Thanks [a0xnirudh](https://hackerone.com/a0xnirudh) for reporting this vulnerability through our HackerOne bug bounty program", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-03-25T16:34:18.860Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-25T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-2745"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-26T03:55:31.559Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[7.11,18.8.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18.9,18.9.3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18.10,18.10.1)"}}], "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"}], "analysis": {"en": {"generated_at": "2026-03-25T19:09:42.745651+00:00", "value": {"mitigation_remediation": ["Upgrade GitLab to version 18.8.7, 18.9.3, 18.10.1 or later.", "Test the new release in a staging environment to confirm compatibility with existing integrations.", "Deploy the upgraded release in production after successful testing.", "Monitor authentication logs for anomalous activity following the upgrade.", "Check GitLab\u2019s official channels for any additional advisories or patches."], "summary": {"action": "Apply Patch", "impact": "Unauthorized Access"}, "threat_synthesis": {"affected_systems": "GitLab Community Edition and Enterprise Edition are affected. All releases from version 7.11 through the pre\u201118.8.7, pre\u201118.9.3, and pre\u201118.10.1 versions are vulnerable. Versions 18.8.7, 18.9.3, and 18.10.1 and later contain the fix.", "description_and_impact": "An unauthenticated user can bypass GitLab\u2019s WebAuthn two\u2011factor authentication by following an alternate authentication path. The flaw stems from inconsistent input validation in the login process, allowing a crafted request to be accepted as legitimate. This results in the attacker gaining unauthorized access to any affected user account without having to provide correct credentials.", "risk_and_exploitability": "The CVSS score of 6.8 categorizes the issue as medium severity. No EPSS data is available, and the vulnerability is not listed in CISA\u2019s KEV catalog. An attacker can exploit the flaw remotely by sending a specially crafted request to the GitLab authentication endpoint; no user authentication is required. Because the attack requires only web access, the potential impact is the compromise of any user account that has WebAuthn enabled, which could lead to broader system compromise if the attacker escalates privileges or accesses sensitive data."}}}}, "created": "2026-03-25T21:46:50.297508+00:00", "updated": "2026-03-26T11:34:32.892372+00:00", "vendors": ["gitlab", "gitlab$PRODUCT$gitlab"]}