CVE-2023-39456: Apache Traffic Server

High severity, CVSS 7.5. EPSS: 53.8% chance of exploitation in the next 30 days.

Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 9.2.3, which fixes the issue.

Affected products

• Apache Traffic Server: from 9.0.0, before 9.2.3 (fixed in 9.2.3)
• Fedoraproject Fedora: version 37 only; version 38 only

Published 2023-10-17. Last modified 2026-06-17.