CVE-2026-28780: CWE-122 Heap-based Buffer Overflow in Apache Software Foundation Apache HTTP Server
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.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the mod_proxy_ajp component of Apache HTTP Server. When mod_proxy_ajp connects to a malicious AJP server, the server can send a specially crafted AJP message that causes mod_proxy_ajp to write 4 bytes beyond the allocated heap buffer boundary. This can lead to memory corruption. The vulnerability affects Apache HTTP Server versions through 2.4.66. The Apache Software Foundation has addressed this issue in version 2.4.67.
Potential Impact
The vulnerability allows a malicious AJP server to cause a heap buffer overflow in mod_proxy_ajp, potentially leading to memory corruption. The exact impact beyond memory corruption is not detailed in the provided information. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache HTTP Server to version 2.4.67 or later, where this vulnerability is fixed. No other mitigation guidance is provided. Patch status is confirmed by the vendor advisory recommending upgrade to 2.4.67.
CVE-2026-28780: CWE-122 Heap-based Buffer Overflow in Apache Software Foundation Apache HTTP Server
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the mod_proxy_ajp component of Apache HTTP Server. When mod_proxy_ajp connects to a malicious AJP server, the server can send a specially crafted AJP message that causes mod_proxy_ajp to write 4 bytes beyond the allocated heap buffer boundary. This can lead to memory corruption. The vulnerability affects Apache HTTP Server versions through 2.4.66. The Apache Software Foundation has addressed this issue in version 2.4.67.
Potential Impact
The vulnerability allows a malicious AJP server to cause a heap buffer overflow in mod_proxy_ajp, potentially leading to memory corruption. The exact impact beyond memory corruption is not detailed in the provided information. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache HTTP Server to version 2.4.67 or later, where this vulnerability is fixed. No other mitigation guidance is provided. Patch status is confirmed by the vendor advisory recommending upgrade to 2.4.67.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-03T12:31:23.999Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fa665ccbff5d861029ec69
Added to database: 5/5/2026, 9:51:24 PM
Last enriched: 5/5/2026, 10:06:45 PM
Last updated: 5/5/2026, 10:53:13 PM
Views: 4
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