REDHAT-BUG-2466913: Buffer Overflow

Published May 5, 2026
·
Updated

Heap-based Buffer Overflow vulnerability in modproxyajp of Apache HTTP Server. If modproxyajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to modproxyajp 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 Software

1 affected component
Apache HTTP Server<=2.4.66

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apache HTTP Server (mod_proxy_ajp) to a version that resolves this vulnerability.

    Fixed in 2.4.67

Event History

May 5, 2026
Data Sourced
via Red Hat·10:01 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2466913?

The severity of REDHAT-BUG-2466913 is classified as high, with a score of 7.

2

What type of vulnerability is REDHAT-BUG-2466913?

REDHAT-BUG-2466913 is a heap-based buffer overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.

3

How does REDHAT-BUG-2466913 affect Apache HTTP Server?

REDHAT-BUG-2466913 allows a malicious AJP server to send crafted messages that can overwrite memory, potentially leading to code execution.

4

How can I fix REDHAT-BUG-2466913?

To fix REDHAT-BUG-2466913, ensure that you update Apache HTTP Server to the latest version that addresses this vulnerability.

5

What software is impacted by REDHAT-BUG-2466913?

REDHAT-BUG-2466913 affects the Apache HTTP Server specifically related to its mod_proxy_ajp module.

Contact

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