CVE Database›Document archive›CVE-2026-5089

CVE-2026-5089

perl-YAML-Syck: perl-YAML-Syck: Information disclosure via out-of-bounds read in base60 parsing

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Severity

Moderate

Red Hat Product Security

4

CVSS 3.1

Review impact separately from score.

Published · May 13, 2026

Updated · June 28, 2026

Description

A flaw was found in perl-YAML-Syck. The base60 (sexagesimal) parsing code in perl_syck.h contains a buffer underflow vulnerability. When processing specially crafted colon-separated values, an attacker could cause the parser to read one byte before the allocated buffer. This out-of-bounds read may lead to information disclosure.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-125 · Out-of-bounds Read