CVE-2026-109413

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 collection, without entering the nesting level that the rest of the parser bounds with maxNestingLevel. A documen...

EUVD-2026-102109

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 collection, without entering the nesting level that the rest of the parser bounds with maxNestingLevel. A documen...