CVEvulnerability
CVE-2025-11683
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-10-16
- Last modified
- 2026-10-08
- Assigner
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-119
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.
Affected configurations
• toddr yaml\ \ (< 1.36)
Related
Weakness · CWE (1)
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
References
- https://github.com/cpan-authors/YAML-Syck/pull/65 Issue Tracking
- https://metacpan.org/dist/YAML-Syck/changes Product, Release Notes