SB2026102319 - Fedora 44 update for trafficserver



SB2026102319 - Fedora 44 update for trafficserver

Published: October 23, 2026

Security Bulletin ID SB2026102319
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2025-55702)

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

CVSSv4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to smuggle requests past a front-end proxy and desynchronize responses for other users.

The vulnerability exists due to improper HTTP request framing in Apache Traffic Server when an origin responds to a POST with Expect: 100-continue before reading its body, leaving the unread body to be parsed as another request. A remote attacker can send a crafted POST through a front-end proxy that shares connections to Traffic Server to smuggle a request past the front end and desynchronize other users' responses.


Remediation

Install update from vendor's website.