CVE-2026-57073
Full vulnerability record from the local CVENow database.
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.
Severity
CRITICAL
CVSS score
9.1
(v3.1)
Vulnerability status
Deferred
Source identifier
9b29abf9-4ab0-4765-b253-1875cd9b441e
Published
2026-07-16 17:16:58.117000
Last modified
2026-10-24 20:10:00.137000
View original CVE JSON
{
"id": "CVE-2026-57073",
"sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"published": "2026-07-16T17:16:58.117",
"lastModified": "2026-10-24T20:10:00.137",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead.\n\nThe 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.\n\nTruncated strings such as \"<a/\" can trigger an out-of-bounds read.\n\nNote that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository."
},
{
"lang": "es",
"value": "Las versiones de HTML::Bare hasta la 0.04 para Perl tienen una anticipación de caracteres no acotada.\n\nLa función parserc_parse intenta verificar cadenas de múltiples caracteres como ’<![CDATA’ o terminadores de elementos como ’>’ sin comprobar que los desplazamientos estén dentro del búfer.\n\nCadenas truncadas como ’<a/’ pueden desencadenar una lectura fuera de límites.\n\nTenga en cuenta que la última versión disponible en CPAN es la versión 0.02. Las versiones más recientes están disponibles en el repositorio git."
}
],
"affected": [
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"affectedData": [
{
"vendor": "CODECHILD",
"product": "HTML::Bare",
"defaultStatus": "unaffected",
"collectionURL": "https://cpan.org/modules",
"packageName": "HTML-Bare",
"programFiles": [
"parser.c"
],
"programRoutines": [
{
"name": "parserc_parse"
}
],
"repo": "https://github.com/nanoscopic/perl-HTML-Bare",
"versions": [
{
"version": "0",
"lessThanOrEqual": "0.04",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.2
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-17T12:44:11.342365Z",
"id": "CVE-2026-57073",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"references": [
{
"url": "https://github.com/nanoscopic/perl-HTML-Bare/pull/2",
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
},
{
"url": "https://security.metacpan.org/patches/H/HTML-Bare/0.02/CVE-2026-57073-r1.patch",
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
},
{
"url": "https://security.metacpan.org/patches/H/HTML-Bare/0.04/CVE-2026-57073-r2.patch",
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/07/16/3",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}