Apache HTTP Server: SSRF with mod_headers setting Content-Type header
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-43204US | — | — | ||
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 m… | ||||
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references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2025/07/10/2WEB
- http://www.openwall.com/lists/oss-security/2025/07/10/4WEB
- https://httpd.apache.org/security/vulnerabilities_24.htmlADVISORY
- https://lists.debian.org/debian-lts-announce/2025/08/msg00009.htmlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2024-43204WEB
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