CVE-2026-111815

Apache Traffic Server can resume a TLS session across SNI virtual hosts without re-verifying a client certificate required by the resumed host's verify_client STRICT policy. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.

Score

CVSS 3.1 10.0 Critical

Status

Awaiting Analysis - security@apache.org

Published

2026-10-21

Last modified

2026-10-23

Weaknesses

CWE-295

Affected products

• Apache Traffic Server (Apache Software Foundation)

References

• https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc