CVE-2026-111814 Apache Traffic Server - Authentication Bypass

Apache Traffic Server 9.0.0 through 9.2.15, 10.0.0 through 10.1.4, and 10.2.0 contains a broken authentication caused by reuse of pooled TLS sessions authenticated with one client certificate for transactions configured to present a different one, letting attackers bypass client certificate authentication, exploit requires default outbound session-sharing policy.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Published
21 October 2026
Updated
22 October 2026
Weakness
CWE-295

Vendor fix

Upgrade to versions 9.2.16, 10.1.5, or 10.2.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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