Out-of-bounds Read in Codechild Html::bare
CVE-2026-57073
HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead. The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer. Truncated strings such as "<a/" can trigger an out-of-bounds read. Note that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (48.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Codechild Html::bare — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-57073?
- CVE-2026-57073 is a critical-severity vulnerability in Codechild Html::bare, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-07-16.
- How severe is CVE-2026-57073?
- Critical severity. CVSS v3 base score is 9.1 out of 10.