CVE-2024-42516

High

Description

HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Apache Http Server

PublishedJul 10, 2025

First seenJul 10, 2025

Weakness typeCWE-20Improper input validation

How to fix

Update

apache http_server2.4.64 or later

Vendor advisories

httpd.apache.org/security/vulnerabilities_24.html

Affected products

Product	Affected versions	Fixed in
apache http_server	2.4.0 ≤ v < 2.4.64	2.4.64

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.