CVE-2025-11683
Severity CVSS v4.0:
Pending analysis
Type:
CWE-119
Buffer Errors
Publication date:
16/10/2025
Last modified:
16/10/2025
Description
YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure<br />
<br />
Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read<br />
<br />
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.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM