What is CVE-2026-57077?

CVE-2026-57077 is a high-severity vulnerability in Toddr Yaml::syck, classified under Out-of-bounds Read. CVSS score: 7.7/10. Published 2026-07-16.

How severe is CVE-2026-57077?

High severity. CVSS v3 base score is 7.7 out of 10.

Out-of-bounds Read in Toddr Yaml::syck

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. In the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a "\r\n" pair, w…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Toddr Yaml::syck — versions 0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
9b29abf9-4ab0-4765-b253-1875cd9b441e (related)

Frequently asked questions

What is CVE-2026-57077?: CVE-2026-57077 is a high-severity vulnerability in Toddr Yaml::syck, classified under Out-of-bounds Read. CVSS score: 7.7/10. Published 2026-07-16.
How severe is CVE-2026-57077?: High severity. CVSS v3 base score is 7.7 out of 10.