https://seclists.org/oss-sec/2026/q4/18: CVE-2026-57941: Apache HTTP Server: mod_http2 use-after-fe / wild write via shad session->bbtmp -entrancy
Published Oct 1, 2026
·Updated
Affected Software
1 affected component
Apache HTTP Server>=2.4.0<=2.4.68
Frequently Asked Questions
1
Which Apache HTTP Server versions need remediation?
Apache HTTP Server versions 2.4.0 through 2.4.68 are affected. Version 2.4.69 was released with the fix.
2
Which component is involved in this issue?
The vulnerability is in Apache HTTP Server's mod_http2 component. The issue involves use-after-free behavior through shared session->bbtmp re-entrancy.
3
When was the issue fixed?
The issue was fixed in the 2.4.x branch on 2026-10-01 by revision r1938665, and Apache HTTP Server 2.4.69 was released the same day.