Out-of-bounds Write Vulnerability in Apache HTTP Server's mod_proxy_html
CVE-2026-56449

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Http Server
Vendor
CVE Published:
1 October 2026

What is CVE-2026-56449?

An out-of-bounds write vulnerability exists in the mod_proxy_html module of the Apache HTTP Server. This issue can be exploited by sending specially crafted HTTP response bodies, leading to potential data corruption or unauthorized access. The vulnerability may impact the stability and security of systems running affected versions of the server.

Affected Version(s)

Apache HTTP Server 2.4.68

References

https://httpd.apache.org/security/vulnerabilities_24.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lucian Nitescu
.