🛡️ CVE-2025-11683
🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-119 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-119
Public Exploit ✅ No
Source NVD
Published 2025-10-16
Updated 2026-06-02
Modified 2026-03-09
Fix URL N/A

Affected Packages

Software From version Fixed in
yaml\ — 1.36

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