Bug 2544832 (CVE-2026-63292) - CVE-2026-63292 httpd: httpd: Arbitrary code execution via oversized Host header in mod_vhost_alias
Summary: CVE-2026-63292 httpd: httpd: Arbitrary code execution via oversized Host head...
Keywords:
Status: NEW
Alias: CVE-2026-63292
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2545043
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-01 23:07 UTC by OSIDB Bzimport
Modified: 2026-10-07 10:09 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-10-01 23:07:18 UTC 
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.
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