← CVE Intelligence

CVE-2026-54734

Prebid Server Java: Vulnerability to request forgery allows for possible host environment data extraction PUBLISHED

Description (CNA)

Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server's network access. This issue is fixed in version 3.43.0.

Affected (CNA)

Vendor / productVersions
prebid / prebid-server-javaaffected < 3.43.0

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.