HighFix available
libxml2 — security advisory
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
- Products
- libxml2
- Affected versions
- Not specified
- Fixed versions
- 2.9.8-r1
- CVEs
- CVE-2018-14404
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:57 UTC · Revision 1
Source evidence
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
osv:ALPINE-CVE-2018-14404
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
libxml2
Fixed versions: 2.9.8-r1
Complete source record
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],
"modified": "2026-10-23T17:17:55.213316956Z",
"provider": "osv",
"upstream": [
"CVE-2018-14404"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-14404"
]
},
"related_cves": [
{
"value": "CVE-2018-14404",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415026,
"published_at": "2018-07-19T13:29:00.48+00:00"
}