CVE-2026-57077: YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len

Overview

Severity

High (CVSS 7.7)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-10-21

EPSS Score

0.19% (percentile: 8.0%)

Affected Products (1)

Other

• 0-17084

Revision History

• 2026-10-21: Information published.