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Apache HTTP Server Heap-based Buffer Overflow Vulnerability - CVE-2026-28780 - Vulnerability Database
Apache HTTP Server

Apache HTTP Server Heap-based Buffer Overflow Vulnerability - CVE-2026-28780

Critical
Reference: CVE-2026-28780
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-28780
Title: Apache HTTP Server Heap-based Buffer Overflow Vulnerability
Overview:

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.