CVE-2014-9130: Pyyaml Libyaml

Medium severity, CVSS 5.0. EPSS: 13.2% chance of exploitation in the next 30 days.

scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause a denial of service (assertion failure and crash) via vectors involving line-wrapping.

Affected products

• Pyyaml Libyaml: version 0.1.5 only; version 0.1.6 only

Published 2014-12-08. Last modified 2026-06-17.