Critical
tomcat-native — security advisory
Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fix the issue.
- Products
- tomcat-native
- Affected versions
- 1.1.33-1, 1.2.14-1, 1.2.16-1, 1.2.16-1build1, 1.2.21-1~18.04.1, 1.2.21-1~18.04.1build1, 1.2.23-1, 1.2.26-1, 1.2.31-1, 1.2.31-1build1, 1.2.35-1, 1.2.35-1build1, 1.2.35-1build2, 1.3.1-1, 1.3.1-1build1, 2.0.14-1, 2.0.14-1~24.04.1, 2.0.14-1~26.04.1, 2.0.15~us1-0ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-86246
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:24 UTC · Revision 1
Source evidence
Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fix the issue.
osv:UBUNTU-CVE-2026-86246
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
tomcat-native
Fixed versions: Not specified
Complete source record
{
"id": "c532ebb65ce9808f320fe41d680db07f607ca6ef92282fa708a8f682325cba6b",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-86246",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-86246",
"summary": "Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fix the issue.",
"evidence": "osv:UBUNTU-CVE-2026-86246",
"products": [
{
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{
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"severity": "critical",
"structured": {
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"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
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"affected": [
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},
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],
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},
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},
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],
"modified": "2026-10-17T13:01:13.518127082Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-86246",
"https://www.cve.org/CVERecord?id=CVE-2026-86246",
"https://lists.apache.org/thread/dgyvfwb24nbk45ptvlhdyhdhl5o7k5ol"
]
},
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],
"security_relevant": true,
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},
"source_id": "core-osv",
"document_id": 361305,
"published_at": "2026-09-23T13:17:00+00:00"
}