Heap-based Buffer Overflow Affecting apache/httpd package, versions [,2.4.67)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 May 2026
- disclosed5 May 2026
- creditAndrew Lacambra, Elhanan Haenel, Tianshuo Han, Tristan Madani
Introduced: 5 May 2026
CVE-2026-28780 (opens in a new tab)How to fix?
Upgrade apache/httpd to version 2.4.67 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the ajp_msg_check_header function. An attacker can execute arbitrary code or cause a denial of service by sending a specially crafted AJP message from a malicious AJP server, resulting in writing attacker-controlled data beyond the end of a heap-based buffer.