All vulnerabilities

Servers and applications

CVE-2026-63292

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…

Severity
High 7.5
Published
1 Oct 2026
Last changed
5 Oct 2026
Added to UpHeron
17 Oct 2026
Fixed in
2.4.69
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • From 2.4.0 before 2.4.69

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-63292
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-63292