CVE-2026-44631 — CRITICAL (9.8)

Q: How severe is CVE-2026-44631?

CVE-2026-44631 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-44631?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Http Server.

Vulnerability Description

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Http Server	>= 2.4.0, < 2.4.68

Related Weaknesses (CWE)

CWE-124

References

https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/08/14Mailing ListThird Party Advisory

FAQ

What is CVE-2026-44631?

CVE-2026-44631 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to ...

How severe is CVE-2026-44631?

CVE-2026-44631 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-44631?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Http Server.