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.

Score

CVSS 3.1 9.1 Critical

Status

Deferred - 9b29abf9-4ab0-4765-b253-1875cd9b441e

Published

2026-07-16

Last modified

2026-10-24

Weaknesses

CWE-125

Affected products

• Htmlbare (Codechild)

References

• https://github.com/nanoscopic/perl-HTML-Bare/pull/2
• https://security.metacpan.org/patches/H/HTML-Bare/0.02/CVE-2026-57073-r1.patch
• https://security.metacpan.org/patches/H/HTML-Bare/0.04/CVE-2026-57073-r2.patch
• http://www.openwall.com/lists/oss-security/2026/07/16/3