{"id":"CVE-2026-49208","state":"PUBLISHED","title":"Symfony UX: Format-less date LiveProps parsed with the permissive DateTime constructor","description":"Symfony UX is a JavaScript ecosystem for Symfony. From 2.8.0 until 2.36.0 and 3.1.0, when a #[LiveProp] is typed as DateTimeInterface and no explicit format is configured, Symfony\\UX\\LiveComponent\\LiveComponentHydrator::hydrateObjectValue() falls back to new $className($value), allowing client-supplied relative strings such as now, tomorrow, or +10 years to move a writable, format-less date prop past time-based business logic checks. This issue is fixed in versions 2.36.0 and 3.1.0.","publishedAt":"2026-07-17T16:10:49.101Z","updatedAt":"2026-07-21T01:41:46.730Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["symfony ux"],"affected":[{"vendor":"symfony","product":"ux","versions":[{"version":">= 3.0.0, < 3.1.0","status":"affected"},{"version":">= 2.8.0, < 2.36.0","status":"affected"}]}],"references":["https://github.com/symfony/ux/security/advisories/GHSA-89g7-22c8-3j23","https://github.com/symfony/ux/commit/d24d78fda6df2d5964312255943ebf3a217b79a2","https://github.com/symfony/ux/releases/tag/v2.36.0","https://github.com/symfony/ux/releases/tag/v3.1.0"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49208.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49208","state":"PUBLISHED","datePublished":"2026-07-17T16:10:49.101Z","dateUpdated":"2026-07-21T01:41:46.730Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-28T03:42:34.340Z"},"containers":{"cna":{"title":"Symfony UX: Format-less date LiveProps parsed with the permissive DateTime constructor","descriptions":[{"lang":"en","value":"Symfony UX is a JavaScript ecosystem for Symfony. From 2.8.0 until 2.36.0 and 3.1.0, when a #[LiveProp] is typed as DateTimeInterface and no explicit format is configured, Symfony\\UX\\LiveComponent\\LiveComponentHydrator::hydrateObjectValue() falls back to new $className($value), allowing client-supplied relative strings such as now, tomorrow, or +10 years to move a writable, format-less date prop past time-based business logic checks. This issue is fixed in versions 2.36.0 and 3.1.0."}],"affected":[{"vendor":"symfony","product":"ux","versions":[{"version":">= 3.0.0, < 3.1.0","status":"affected"},{"version":">= 2.8.0, < 2.36.0","status":"affected"}]}],"references":[{"url":"https://github.com/symfony/ux/security/advisories/GHSA-89g7-22c8-3j23","name":"https://github.com/symfony/ux/security/advisories/GHSA-89g7-22c8-3j23","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/symfony/ux/commit/d24d78fda6df2d5964312255943ebf3a217b79a2","name":"https://github.com/symfony/ux/commit/d24d78fda6df2d5964312255943ebf3a217b79a2","tags":["x_refsource_MISC"]},{"url":"https://github.com/symfony/ux/releases/tag/v2.36.0","name":"https://github.com/symfony/ux/releases/tag/v2.36.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/symfony/ux/releases/tag/v3.1.0","name":"https://github.com/symfony/ux/releases/tag/v3.1.0","tags":["x_refsource_MISC"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-17T16:10:49.101Z"},"source":{"advisory":"GHSA-89g7-22c8-3j23","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-21T01:41:38.338710Z","id":"CVE-2026-49208","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-21T01:41:46.730Z"}}]}}}