Detections
Analytics
CVE-2026-28780
high
Description
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28780.json
https://bugzilla.redhat.com/show_bug.cgi?id=2466913
https://access.redhat.com/security/cve/CVE-2026-28780
https://access.redhat.com/errata/RHSA-2026:27201
https://access.redhat.com/errata/RHSA-2026:27200
https://access.redhat.com/errata/RHSA-2026:22140