CVE-2025-11683 – YAML::Syck versions before 1.36 for Perl has missing Null-Terminators which causes Out-of-Bounds Read and potential Information Disclosure

CVE ID : CVE-2025-11683

Published : Oct. 16, 2025, 1:15 a.m. | 1 hour, 25 minutes ago

Description : YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure

Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read

The issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.

Severity: 0.0 | NA

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