What’s Vulnerable › Vulnerabilities

CVE-2024-24795: Apache HTTP Server: HTTP Response Splitting in multiple modules

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-04 · updated 2026-06-17
• Weakness: CWE-113

Description

HTTP Response splitting in multiple modules in Apache HTTP Server allows an attacker that can inject malicious response headers into backend applications to cause an HTTP desynchronization attack. Users are recommended to upgrade to version 2.4.59, which fixes this issue.

Affected products

• Apache HTTP Server: from 2.4.0 before 2.4.59 — fixed in 2.4.59
• Apple macOS: before 14.6 — fixed in 14.6
• Brocade Fabric OS: all versions
• Debian Linux: 10.0
• Fedoraproject Fedora: 38, 39, 40
• NetApp ONTAP 9: 9
• NetApp Ontap Tools: 10

How to fix

Upgrade to a fixed version: Apache HTTP Server 2.4.59; Apple macOS 14.6. Check the vendor advisory for mitigations.

References

• https://httpd.apache.org/security/vulnerabilities_24.html
• http://seclists.org/fulldisclosure/2024/Jul/18
• http://www.openwall.com/lists/oss-security/2024/04/04/5
• https://httpd.apache.org/security/vulnerabilities_24.html
• https://lists.debian.org/debian-lts-announce/2024/05/msg00013.html
• https://lists.debian.org/debian-lts-announce/2024/05/msg00014.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I2N2NZEX3MR64IWSGL3QGN7KSRUGAEMF/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LX5U34KYGDYPRH3AJ6MDDCBJDWDPXNVJ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNV4SZAPVS43DZWNFU7XBYYOZEZMI4ZC/
• https://security.netapp.com/advisory/ntap-20240415-0013/
• https://support.apple.com/kb/HT214119

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