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Vulnerability record · CVE-2026-57073 · published 16 July 2026

CVE-2026-57073: Out-of-bounds read vulnerability

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.

9.1 CVSS 3.1 Critical EPSS 0.65% · top 50.7% CWE-125 · Out-of-bounds read Deferred
9.1CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jul 2026Last modified by NVD

Description

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.

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

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-57073), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.