CVE-2025-14523 - Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy...

CVE ID : CVE-2025-14523 Published : Dec. 11, 2025, 12:30 p.m. | 44 minutes ago Description : A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers. Severity: 8.2 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

Source: Telegram CVE Monitor