CVE-2026-57074
Full vulnerability record from the local CVENow database.
Description
XML::Bare versions through 0.53 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.
Severity
CRITICAL
CVSS score
9.1
(v3.1)
Vulnerability status
Deferred
Source identifier
9b29abf9-4ab0-4765-b253-1875cd9b441e
Published
2026-07-16 17:16:58.213000
Last modified
2026-10-24 20:10:00.137000
View original CVE JSON
{
"id": "CVE-2026-57074",
"sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"published": "2026-07-16T17:16:58.213",
"lastModified": "2026-10-24T20:10:00.137",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "XML::Bare versions through 0.53 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."
},
{
"lang": "es",
"value": "Las versiones de XML::Bare hasta la 0.53 para Perl tienen una anticipación de caracteres ilimitada.\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."
}
],
"affected": [
{
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"affectedData": [
{
"vendor": "CODECHILD",
"product": "XML::Bare",
"defaultStatus": "unaffected",
"collectionURL": "https://cpan.org/modules",
"packageName": "XML-Bare",
"programFiles": [
"parser.c"
],
"programRoutines": [
{
"name": "parserc_parse"
}
],
"repo": "https://github.com/nanoscopic/perl-XML-Bare",
"versions": [
{
"version": "0",
"lessThanOrEqual": "0.53",
"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": "2026-07-17T17:19:28.282762Z",
"id": "CVE-2026-57074",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"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-XML-Bare/pull/1",
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
},
{
"url": "https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-57074-r1.patch",
"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/07/16/1",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
]
}