High
Security advisory
In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-11761
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:25 UTC · Revision 1
Source evidence
In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.
osv:CVE-2018-11761
Complete source record
{
"id": "94a89b2f1060582d21aaeae8b606eef64b12deb876582df708c7647b7c4fe5fc",
"url": "https://osv.dev/vulnerability/CVE-2018-11761",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-11761",
"summary": "In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.",
"evidence": "osv:CVE-2018-11761",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-11761",
"aliases": [
"CVE-2018-11761",
"GHSA-6jq2-789q-fff2"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/tika",
"type": "GIT",
"events": [
{
"introduced": "fe7399ebe5f1d2cca553252577d0925815072b21"
},
{
"last_affected": "38ff2a986af24ee255f1f91d654ea402f4016696"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:tika:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0.1"
},
{
"last_affected": "1.18"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11761.json"
}
}
],
"modified": "2026-10-24T10:30:39.308419093Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/5553e10bba5604117967466618f219c0cae710075819c70cfb3fb421%40%3Cdev.tika.apache.org%3E",
"https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E",
"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:oracle:business_process_management_suite:12.1.3.0.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:business_process_management_suite:12.2.1.3.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:business_process_management_suite",
"extracted_events": [
{
"range": [
{
"introduced": "12.1.3.0.0"
},
{
"last_affected": "12.1.3.0.0"
},
{
"introduced": "12.2.1.3.0"
},
{
"last_affected": "12.2.1.3.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-11761",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434636,
"published_at": "2018-09-19T14:29:00.287+00:00"
}