SB2026082583 - Fedora 43 update for trafficserver
Published: August 25, 2026
Security Bulletin ID
SB2026082583
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2026-59173)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper flow-control handling in the HTTP/2 implementation when processing stalled flow-control conditions. A remote attacker can send HTTP/2 traffic that triggers stalled flow-control conditions to cause a denial of service.
Remediation
Install update from vendor's website.