A vulnerability labeled as critical has been found in TODDR YAML::Syck up to 1.36 on Perl. Affected by this vulnerability is an unknown functionality of the component base64 Decoder . Executing a manipulation can lead to heap-based buffer overflow. This vulnerability is registered as CVE-2026-4177 . It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.