{"action":"Upgrade symfony to 7.4.18+dfsg-1 or later.","affected":[{"fixed":"7.4.18+dfsg-1","introduced":"0"}],"component":"symfony","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["7.4.18+dfsg-1"],"id":"tcs_01M5NPW7951CDN09ZJ5A7HS8GW","modified_at":"2026-10-23T17:47:38.141195954Z","published_at":"2026-10-15T15:17:24.993Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-109413","https://security-tracker.debian.org/tracker/CVE-2026-109413"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-109413#Debian:14/symfony","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-109413"}],"summary":"In Symfony YAML prior to versions 5.4.54, 6.4.45, 7.4.18, and 8.1.6, Yaml\\Parser::lexInlineStructure() recursed through lexInlineMapping() and lexInlineSequence() for every { and [ of an inline collec"}