CVE-2025-66577
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
05/12/2025
Last modified:
05/12/2025
Description
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can supply X-Forwarded-For or X-Real-IP headers which get accepted unconditionally by get_client_ip() in docker/main.cc, causing access and error logs (nginx_access_logger / nginx_error_logger) to record spoofed client IPs (log poisoning / audit evasion). This vulnerability is fixed in 0.27.0.
Impact
Base Score 3.x
5.30
Severity 3.x
MEDIUM