{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49212","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-28T03:42:34.340Z","datePublished":"2026-07-17T16:03:27.784Z","dateUpdated":"2026-07-17T17:48:49.503Z"},"containers":{"cna":{"title":"Symfony UX: LiveComponentHydrator HMAC checksum lacks component and slot binding","problemTypes":[{"descriptions":[{"cweId":"CWE-345","lang":"en","description":"CWE-345: Insufficient Verification of Data Authenticity","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/symfony/ux/security/advisories/GHSA-34w5-c283-j9fg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/symfony/ux/security/advisories/GHSA-34w5-c283-j9fg"},{"name":"https://github.com/symfony/ux/commit/a224b5af3e2e33ee14ac71356ae0e0877900a81c","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/ux/commit/a224b5af3e2e33ee14ac71356ae0e0877900a81c"},{"name":"https://github.com/symfony/ux/releases/tag/v2.36.0","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/ux/releases/tag/v2.36.0"},{"name":"https://github.com/symfony/ux/releases/tag/v3.1.0","tags":["x_refsource_MISC"],"url":"https://github.com/symfony/ux/releases/tag/v3.1.0"}],"affected":[{"vendor":"symfony","product":"ux","versions":[{"version":">= 3.0.0, < 3.1.0","status":"affected"},{"version":"< 2.36.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-17T16:03:27.784Z"},"descriptions":[{"lang":"en","value":"Symfony UX is a JavaScript ecosystem for Symfony. From 2.8.0 until 2.36.0 and 3.1.0, the HMAC computed by Symfony\\UX\\LiveComponent\\LiveComponentHydrator covered only sorted prop key/value pairs and did not include the component name, the slot identifier (props vs propsFromParent), or request context, allowing a signed blob minted for one component or slot to be replayed in another and set a read-only prop on a target component. This issue is fixed in versions 2.36.0 and 3.1.0."}],"source":{"advisory":"GHSA-34w5-c283-j9fg","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-17T17:48:30.843991Z","id":"CVE-2026-49212","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-17T17:48:49.503Z"}}]}}