CVE-2025-66570
CVE-2025-66570 · cpp-httplib Untrusted HTTP Header Handling: Internal Header Shadowing (REMOTE*/LOCAL*)
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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 inject headers named REMOTE_ADDR, REMOTE_PORT, LOCAL_ADDR, LOCAL_PORT that are parsed into the request header multimap via read_headers() in httplib.h (headers.emplace), then the server later appends its own internal metadata using the same header names in Server::process_request without erasing duplicates. Because Request::get_header_value returns the first entry for a header key (id == 0) and the client-supplied headers are parsed before server-inserted headers, downstream code that uses these header names may inadvertently use attacker-controlled values. Affected files/locations: cpp-httplib/httplib.h (read_headers, Server::process_request, Request::get_header_value, get_header_value_u64) and cpp-httplib/docker/main.cc (get_client_ip, nginx_access_logger, nginx_error_logger). Attack surface: attacker-controlled HTTP headers in incoming requests flow into the Request.headers multimap and into logging code that reads forwarded headers, enabling IP spoofing, log poisoning, and authorization bypass via header shadowing. This vulnerability is fixed in 0.27.0.
CVSS 10.0 · Critique · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
cpp-httplib
- Versions du logiciel
- < 0.27.0: Concernée
Aucun correctif publié
cpp-httplib Debian:12
- Versions du logiciel
- 0.11.4+ds-1
- 0.11.4+ds-1+deb12u1
- 0.11.4+ds-2
- 0.11.4+ds-3
- 0.13.1+ds-1
- 0.14.0+ds-1
- 0.14.1+ds-1
- 0.14.1+ds-2
- 0.14.2+ds-1
- 0.14.3+ds-1
- 0.14.3+ds-1.1
- 0.14.3+ds-1.1~exp1
- 0.15.3+ds-1
- 0.15.3+ds-2
- 0.15.3+ds-3
- 0.16.0+ds-1
- 0.16.3+ds-1
- 0.16.3+ds-2
- 0.18.0+ds-1
- 0.18.7-1
- 0.20.1+ds-3
- 0.25.0+ds-1
- 0.26.0+ds-2
- 0.41.0+ds-1
- 0.41.0+ds-2
- 0.41.0+ds-3
- 0.41.0+ds-3~bpo13+1
- Plages de versions concernées
- ECOSYSTEM: (−∞, +∞)
Aucun correctif publié
cpp-httplib Debian:13
- Versions du logiciel
- 0.18.7-1
- 0.18.7-1+deb13u1
- 0.20.1+ds-3
- 0.25.0+ds-1
- 0.26.0+ds-2
- 0.41.0+ds-1
- 0.41.0+ds-2
- 0.41.0+ds-3
- 0.41.0+ds-3~bpo13+1
- Plages de versions concernées
- ECOSYSTEM: (−∞, +∞)
Aucun correctif publié
cpp-httplib Debian:14
- Versions du logiciel
- 0.18.7-1
- 0.20.1+ds-3
- 0.25.0+ds-1
- 0.26.0+ds-2
- 0.41.0+ds-1
- 0.41.0+ds-2
- 0.41.0+ds-3~bpo13+1
- Plages de versions concernées
- ECOSYSTEM: < 0.41.0+ds-3
Mettez à jour vers 0.41.0+ds-3
cpp-httplib Ubuntu:Pro:22.04:LTS
- Versions du logiciel
- 0.9.9+ds-1
- 0.9.10+ds-1
- 0.10.1+ds-1
- 0.10.2+ds-1
- 0.10.3+ds-1
- Plages de versions concernées
- ECOSYSTEM: < 0.10.3+ds-1ubuntu0.1~esm1
Mettez à jour vers 0.10.3+ds-1ubuntu0.1~esm1
cpp-httplib Ubuntu:Pro:24.04:LTS
- Versions du logiciel
- 0.13.1+ds-1ubuntu1
- 0.14.3+ds-1
- 0.14.3+ds-1.1
- 0.14.3+ds-1.1build1
- 0.14.3+ds-1.1build2
- Plages de versions concernées
- ECOSYSTEM: < 0.14.3+ds-1.1ubuntu0.1~esm1
Mettez à jour vers 0.14.3+ds-1.1ubuntu0.1~esm1
cpp-httplib Ubuntu:25.10
- Versions du logiciel
- 0.18.7-1
- Plages de versions concernées
- ECOSYSTEM: < 0.18.7-1ubuntu0.25.10.1
Mettez à jour vers 0.18.7-1ubuntu0.25.10.1
cpp-httplib Ubuntu:26.10
- Versions du logiciel
- 0.26.0+ds-2ubuntu3
- 0.26.0+ds-2ubuntu4
- Plages de versions concernées
- ECOSYSTEM: (−∞, +∞)
Aucun correctif publié
cpp-httplib Ubuntu:Pro:26.04:LTS
- Versions du logiciel
- 0.18.7-1
- 0.26.0+ds-2ubuntu2
- 0.26.0+ds-2ubuntu3
- 0.26.0+ds-2ubuntu3+esm1
- Plages de versions concernées
- ECOSYSTEM: (−∞, +∞)
Aucun correctif publié