Buffer Over-read Vulnerability in Apache HTTP Server (CVE-2026-34059)
Summary
DEBIAN-CVE-2026-34059: Buffer Over-read vulnerability in Apache HTTP Server. Affects apache2 versions 2.4.48-3.1 – 2.4.66-8. No fix is published. How to fix ↓
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Background
Apache HTTP Server is a widely-used open-source web server software that enables users to serve web content. Known for its flexibility, security features, and extensive module support, Apache is a critical component in many web infrastructures. However, it is susceptible to various vulnerabilities, including the recently identified buffer over-read issue, which affects versions up to 2.4.66.
Vulnerability Detail
The buffer over-read vulnerability in Apache HTTP Server (CVE-2026-34059) allows attackers to read beyond the allocated memory buffer. This can lead to unauthorized access to sensitive data or application crashes. The vulnerability originates from improper handling of certain requests, which can be exploited by an attacker to gain insights into the server's memory layout, potentially exposing confidential information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary measure, users can restrict access to the affected server or disable specific features that may be exploited until the upgrade is completed. However, upgrading to the patched version is the recommended approach for long-term security.
Conclusion
The buffer over-read vulnerability (CVE-2026-34059) in Apache HTTP Server poses serious security risks, but it can be effectively mitigated by upgrading to version 2.4.67. Users are encouraged to take immediate action to protect their systems and data.
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FAQ
CVE-2026-34059 is a buffer over-read vulnerability in Apache HTTP Server that affects versions up to 2.4.66.
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The vulnerability can lead to unauthorized access to sensitive data or application crashes, posing significant security risks.
Yes, upgrading to Apache HTTP Server version 2.4.67 or later will patch the vulnerability.
If immediate upgrading is not possible, consider restricting access to the server or disabling vulnerable features until the upgrade can be performed.
References
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