Inconsistent interpretation of HTTP requests in Apache Traffic Server - CVE-2026-24033
Published: August 24, 2026
Vulnerability identifier: #VU144786
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-24033
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform request smuggling.
The vulnerability exists due to improper parsing in HTTP/1 when processing chunked-extension quoted-string values. A remote attacker can send a specially crafted request to perform request smuggling.
The issue occurs when Apache Traffic Server is used as a reverse proxy.
Affected software
Apache Traffic Server
Fedora
trafficserver
Fedora
trafficserver
How to mitigate CVE-2026-24033
Install security update from vendor's website.
Apache Traffic Server - addressed in versions 9.2.14, 10.1.3
trafficserver - addressed in versions 9.2.15-1.el8, 9.2.15-1.el9, 10.1.4-1.fc43, 10.1.4-1.fc44
trafficserver - addressed in versions 9.2.15-1.el8, 9.2.15-1.el9, 10.1.4-1.fc43, 10.1.4-1.fc44