CVE-2026-54735

Published: Lug 29, 2026 Last Modified: Lug 29, 2026

ExploitDB:

Other exploit source:

Google Dorks:

CRITICAL 10,0

Source: [email protected]

Attack Vector: network

Attack Complexity: low

Privileges Required: none

User Interaction: none

Scope: changed

Confidentiality: high

Integrity: high

Availability: high

Description

AI Translation Available

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 crafted bid request parameters to cause server-side requests to unintended destinations and potentially expose internal network services or sensitive server endpoints. This issue is fixed in version 4.4.0.