CVE-2026-45109

{"id": "CVE-2026-45109", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-05-13T18:16:19.283", "references": [{"url": "https://github.com/vercel/next.js/security/advisories/GHSA-26hh-7cqf-hhc6", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-288"}]}], "descriptions": [{"lang": "en", "value": "Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.6."}], "lastModified": "2026-05-14T14:14:06.463", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "555F170D-C56B-4A2E-9684-67E8F2AFD5FA", "versionEndExcluding": "15.5.18", "versionStartIncluding": "15.2.0"}, {"criteria": "cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "FA3ADAD4-2BBF-4905-9276-A24A758EB4C8", "versionEndExcluding": "16.2.6", "versionStartIncluding": "16.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}