CVE-2026-44185: Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP `send_request`

Published Jun 8, 2026
·
Updated

Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server

Affected Software

4 affected componentsFixes available
Apache HTTP Server>=2.4.0<=2.4.67
Microsoft azl3 httpd 2.4.67-1
Apache HTTP Server>=2.4.0<2.4.68
debian/apache2<=2.4.62-1~deb11u1, <=2.4.67-1~deb12u3, <=2.4.67-1~deb13u3
2.4.67-1~deb11u32.4.68-1~deb12u12.4.68-1~deb13u12.4.68-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/apache2 to a version that resolves this vulnerability.

    Fixed in 2.4.67-1~deb11u3Fixed in 2.4.68-1~deb12u1Fixed in 2.4.68-1~deb13u1Fixed in 2.4.68-1
  2. Upgrade

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

    Fixed in 2.4.68

Event History

Jun 8, 2026
CVE Published
via MITRE·03:22 PM
Data Sourced
via MITRE·03:22 PM
DescriptionWeakness
Data Sourced
via Red Hat·04:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 11, 2026
Data Sourced
via Microsoft·08:02 AM
DescriptionSeverityWeaknessAffected Software
Jul 9, 2026
Data Sourced
via Launchpad·03:49 PM
Description
Jul 20, 2026
Data Sourced
via Debian·10:12 PM
DescriptionAffected Software
Jul 21, 2026
Data Sourced
via Ubuntu·10:11 PM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-44185?

CVE-2026-44185 is rated with a risk score of 23.

2

How do I fix CVE-2026-44185?

To fix CVE-2026-44185, upgrade Apache HTTP Server to version 2.4.68 or later.

3

What versions of Apache HTTP Server are affected by CVE-2026-44185?

CVE-2026-44185 affects Apache HTTP Server versions from 2.4.0 through 2.4.67.

4

What is the nature of the vulnerability described in CVE-2026-44185?

CVE-2026-44185 is a stack buffer over-read vulnerability that occurs during OCSP requests to an attacker-controlled server.

5

Is there a security patch available for CVE-2026-44185?

Yes, a security patch is included in Apache HTTP Server version 2.4.68 to address CVE-2026-44185.

Company

Resources

Contact

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