cvedb.io
CVE-2026-28780
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-05-05T22:16:00.390 · Last modified 2026-06-30T03:18:02.730

Summary

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.

Affected products

apache — http_server

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.