4 matches found
GHSA-9FRC-8383-795M Symfony's YAML Parser has a ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex
Description Symfony\Component\Yaml\Parser::cleanup strips the optional %YAML directive header, leading comments, and document start/end markers before parsing. The original regexes contained overlapping quantifiers, most notably '^%YAML: \d.+.\nu', whose \d.+ and . overlap on the dot, that exhibi...
Symfony's YAML Parser has a ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex
Description Symfony\Component\Yaml\Parser::cleanup strips the optional %YAML directive header, leading comments, and document start/end markers before parsing. The original regexes contained overlapping quantifiers, most notably '^%YAML: \d.+.\nu', whose \d.+ and . overlap on the dot, that exhibi...
PT-2026-44150
Name of the Vulnerable Software and Affected Versions Symfony versions prior to 5.4.31 Description The cleanup function in SymfonyComponentYamlParser contains regular expressions with overlapping quantifiers, specifically in the pattern used to strip the %YAML directive header. This leads to...