Vulnerability record · CVE-2026-63292 · published 1 October 2026

CVE-2026-63292: Apache http server stack-based buffer overflow vulnerability

Apache · Http Server

Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

7.5 CVSS 3.1 High EPSS 0.95% · top 38.3% CWE-121 · Stack-based buffer overflow

7.5CVSS 3.1 base score

0.95%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

5 Oct 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Http Server Apache

References

Link	Tags
https://httpd.apache.org/security/vulnerabilities_24.html	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/10/01/24	Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-63292), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.