High
tomcat-native — security advisory
Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fixes 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-2026-86247
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:24 UTC · Revision 1
Source evidence
Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fixes the issue.
osv:UBUNTU-CVE-2026-86247
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
{
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"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-86247",
"method": "structured",
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},
{
"type": "Ubuntu",
"score": "medium"
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"modified": "2026-10-17T13:01:13.748408508Z",
"provider": "osv",
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"references": [
"https://ubuntu.com/security/CVE-2026-86247",
"https://www.cve.org/CVERecord?id=CVE-2026-86247",
"https://lists.apache.org/thread/obsson6zhvfg0wsp2bx602l61ltj87r1"
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"source_id": "core-osv",
"document_id": 361322,
"published_at": "2026-09-23T13:17:00+00:00"
}