High severity · published Jul 10, 2025
CVE-2024-43204
SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header with a value provided in the HTTP request.
Users are recommended to upgrade to version 2.4.64 which fixes this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HS
HTTP Server · Apache
2.4.0 before 2.4.64 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-43204
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-43204
Vendor Advisory
https://httpd.apache.org/security/vulnerabilities_24.html
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/07/10/2
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/07/10/4
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html
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