CVE-2024-42516

HIGH7.5

Apache HTTP Server: HTTP response splitting

Published Jul 10, 2025

Modified 4 months ago

Details

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.

References

WEB

http://www.openwall.com/lists/oss-security/2025/07/10/2

WEB

http://www.openwall.com/lists/oss-security/2025/07/10/3

ADVISORY

https://httpd.apache.org/security/vulnerabilities_24.html

WEB

https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2024-42516

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

HighI:H

Availability

NoneA:N

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

Weakness Type (CWE)

Input Validation

CWE-20

Improper Input Validation

Ecosystems

Timeline

PublishedJul 10, 2025

ModifiedNov 4, 2025