Medium
Security advisory
The URLValidator class in Apache Struts 2 2.3.20 through 2.3.28.1 and 2.5.x before 2.5.1 allows remote attackers to cause a denial of service via a null value for a URL field.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-4465
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:13 UTC · Revision 1
Source evidence
The URLValidator class in Apache Struts 2 2.3.20 through 2.3.28.1 and 2.5.x before 2.5.1 allows remote attackers to cause a denial of service via a null value for a URL field.
osv:CVE-2016-4465
Complete source record
{
"id": "dba5bd703fb2524be16d9cd1f0ed63c50e45b55806d98d2f749a26f2d2ca31c1",
"url": "https://osv.dev/vulnerability/CVE-2016-4465",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-4465",
"summary": "The URLValidator class in Apache Struts 2 2.3.20 through 2.3.28.1 and 2.5.x before 2.5.1 allows remote attackers to cause a denial of service via a null value for a URL field.",
"evidence": "osv:CVE-2016-4465",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-4465",
"aliases": [
"CVE-2016-4465",
"GHSA-xg75-68x3-7p3q"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/struts",
"type": "GIT",
"events": [
{
"introduced": "0320310406f6b11cfd235d7a9b866cf1de483a1e"
},
{
"last_affected": "9a63e6504b2d246573ff1483d45d9b12a49aa9c6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:struts:2.3.20:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.20"
},
{
"last_affected": "2.3.20"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.20.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.20.1"
},
{
"last_affected": "2.3.20.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.20.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.20.3"
},
{
"last_affected": "2.3.20.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.24:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.24"
},
{
"last_affected": "2.3.24"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.24.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.24.1"
},
{
"last_affected": "2.3.24.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.24.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.24.3"
},
{
"last_affected": "2.3.24.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.28:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.28"
},
{
"last_affected": "2.3.28"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.3.28.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.3.28.1"
},
{
"last_affected": "2.3.28.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5"
},
{
"last_affected": "2.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.5:beta1:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5-beta1"
},
{
"last_affected": "2.5-beta1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.5:beta2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5-beta2"
},
{
"last_affected": "2.5-beta2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:struts:2.5:beta3:*:*:*:*:*:*",
"range": [
{
"introduced": "2.5-beta3"
},
{
"last_affected": "2.5-beta3"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.3.20",
"2.3.20.1",
"2.3.20.3",
"2.3.24",
"2.3.24.1",
"2.3.24.3",
"2.3.28",
"2.3.28.1",
"2.5",
"2.5-beta1",
"2.5-beta2",
"2.5-beta3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-4465.json"
}
}
],
"modified": "2026-10-24T10:30:25.479128546Z",
"provider": "osv",
"references": [
"https://struts.apache.org/docs/s2-041.html",
"https://bugzilla.redhat.com/show_bug.cgi?id=1348253"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:apache:struts:2.3.20.1:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.20.3:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.20:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.24.1:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.24.3:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.24:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.28.1:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.3.28:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.5:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.5:beta1:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.5:beta2:*:*:*:*:*:*",
"cpe:2.3:a:apache:struts:2.5:beta3:*:*:*:*:*:*"
],
"vendor_product": "apache:struts",
"extracted_events": [
{
"range": [
{
"introduced": "2.3.20"
},
{
"last_affected": "2.3.20"
},
{
"introduced": "2.3.20.1"
},
{
"last_affected": "2.3.20.1"
},
{
"introduced": "2.3.20.3"
},
{
"last_affected": "2.3.20.3"
},
{
"introduced": "2.3.24"
},
{
"last_affected": "2.3.24"
},
{
"introduced": "2.3.24.1"
},
{
"last_affected": "2.3.24.1"
},
{
"introduced": "2.3.24.3"
},
{
"last_affected": "2.3.24.3"
},
{
"introduced": "2.3.28"
},
{
"last_affected": "2.3.28"
},
{
"introduced": "2.3.28.1"
},
{
"last_affected": "2.3.28.1"
},
{
"introduced": "2.5"
},
{
"last_affected": "2.5"
},
{
"introduced": "2.5-beta1"
},
{
"last_affected": "2.5-beta1"
},
{
"introduced": "2.5-beta2"
},
{
"last_affected": "2.5-beta2"
},
{
"introduced": "2.5-beta3"
},
{
"last_affected": "2.5-beta3"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-4465",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431446,
"published_at": "2016-07-04T22:59:10.117+00:00"
}