CVE-2026-42349

{"id": "CVE-2026-42349", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42349", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-14T18:18:41.752602Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "clerk", "product": "javascript", "versions": [{"status": "affected", "version": ">= 5.22.0, < 5.125.10"}, {"status": "affected", "version": ">= 6.0.0, < 6.7.5"}]}, {"vendor": "@clerk", "product": "shared", "versions": [{"status": "affected", "version": ">= 3.0.0, <= 3.47.4"}, {"status": "affected", "version": ">= 4.0.0, <= 4.8.2"}]}, {"vendor": "@clerk", "product": "backend", "versions": [{"status": "affected", "version": ">= 2.0.0, <= 2.33.2"}, {"status": "affected", "version": ">= 3.0.0, <= 3.2.13"}]}, {"vendor": "@clerk", "product": "nextjs", "versions": [{"status": "affected", "version": ">= 6.0.0, <= 6.39.2"}, {"status": "affected", "version": ">= 7.0.0, <= 7.2.3"}]}, {"vendor": "@clerk", "product": "clerk-react", "versions": [{"status": "affected", "version": ">= 5.9.0, <= 5.61.5"}]}, {"vendor": "@clerk", "product": "react", "versions": [{"status": "affected", "version": ">= 6.0.0, <= 6.4.2"}]}, {"vendor": "@clerk", "product": "vue", "versions": [{"status": "affected", "version": ">= 1.0.0, <= 1.17.20"}, {"status": "affected", "version": ">= 2.0.0, <= 2.0.15"}]}, {"vendor": "@clerk", "product": "astro", "versions": [{"status": "affected", "version": ">= 2.0.0, <= 2.17.10"}, {"status": "affected", "version": ">= 3.0.0, <= 3.0.17"}]}, {"vendor": "@clerk", "product": "nuxt", "versions": [{"status": "affected", "version": ">= 1.0.0, <= 1.13.28"}, {"status": "affected", "version": ">= 2.0.0, <= 2.2.4"}]}, {"vendor": "@clerk", "product": "clerk-expo", "versions": [{"status": "affected", "version": ">= 2.2.11, <= 2.19.35"}]}, {"vendor": "@clerk", "product": "expo", "versions": [{"status": "affected", "version": ">= 3.0.0, <= 3.2.1"}]}, {"vendor": "@clerk", "product": "react-router", "versions": [{"status": "affected", "version": ">= 0.0.1, <= 2.4.12"}, {"status": "affected", "version": ">= 3.0.0, <= 3.1.3"}]}, {"vendor": "@clerk", "product": "tanstack-react-start", "versions": [{"status": "affected", "version": ">= 0.0.1, <= 0.29.10"}, {"status": "affected", "version": ">= 1.0.0, <= 1.1.3"}]}, {"vendor": "@clerk", "product": "chrome-extension", "versions": [{"status": "affected", "version": ">= 1.3.5, <= 2.9.14"}, {"status": "affected", "version": ">= 3.0.0, <= 3.1.14"}]}, {"vendor": "@clerk", "product": "fastify", "versions": [{"status": "affected", "version": ">= 1.0.42, <= 2.6.30"}, {"status": "affected", "version": ">= 3.0.0, <= 3.1.15"}]}, {"vendor": "@clerk", "product": "express", "versions": [{"status": "affected", "version": ">= 0.1.0, <= 1.7.78"}, {"status": "affected", "version": ">= 2.0.0, <= 2.1.5"}]}, {"vendor": "@clerk", "product": "hono", "versions": [{"status": "affected", "version": ">= 0.0.2, <= 0.1.15"}]}]}], "published": "2026-05-11T17:16:33.147", "references": [{"url": "https://github.com/clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/clerk/javascript/security/advisories/GHSA-w24r-5266-9c3c", "tags": ["Mitigation", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-754"}, {"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "Clerk JavaScript is the official JavaScript repository for Clerk authentication. has(), auth.protect(), and related authorization predicates in @clerk/shared, @clerk/nextjs, @clerk/backend, and other framework SDKs can return true for certain combined authorization checks when the result should be false, allowing a gated action to proceed for a user who does not satisfy the full set of requested conditions. This call shape can be bypassed if certain conditions are met: a has() or auth.protect() call that combines a reverification check with any of role, permission, feature, or plan, or that combines a billing check (feature or plan) with a role or permission check. This vulnerability is fixed in @clerk/clerk-js 5.125.10 and 6.7.5."}], "lastModified": "2026-06-17T10:47:43.433", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:clerk:clerk\\/astro:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "30F84DDC-8228-4D7A-BEAC-FDE0487D41DB", "versionEndExcluding": "2.17.11", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:clerk:clerk\\/astro:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "92B175FF-5976-481F-9FC3-52C00392997C", "versionEndExcluding": "3.0.18", "versionStartIncluding": "3.0.0"}, {"criteria": "cpe:2.3:a:clerk:clerk\\/backend:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "42CE4C47-A64E-47F5-8FF2-2855F623CB3E", "versionEndExcluding": "2.33.3", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:clerk:clerk\\/backend:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "92B0F10A-B9D0-4AE7-ACE0-DF80D552BB9C", "versionEndExcluding": 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