Server-Side Request Forgery (SSRF)

Prebid Server is vulnerable to Server-Side Request Forgery SSRF. The vulnerability is due to certain bidder adapters interpolating user-supplied parameters into outbound request URLs without properly validating host and subdomain values, which allows an attacker to craft bid request parameters th...

CVE-2026-54735

Prebid Server is an open-source solution for running real-time advertising auctions in the cloud. Prior to version 4.4.0, certain bidder adapters in Prebid Server interpolate user-supplied parameters into outbound request URLs without properly validating host and subdomain values, allowing crafte...

GHSA-4P3G-4HCJ-WPVX prebid-server's request forgery vulnerability allows for possible host environment data extraction

Impact Certain bidder adapters accept user-supplied parameters that are interpolated into outbound request URLs. Without proper input validation, a malicious actor could craft bid request parameters that cause the server to send HTTP requests to unintended destinations, potentially exposing...