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Vulnerabilities / CVE-2026-54735

critical

CVE-2026-54735

prebid-server's request forgery vulnerability allows for possible host environment data extraction

Published Modified CWE 918
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

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.

Affected packages and fixed versions

SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/prebid/prebid-server, github.com/prebid/prebid-server/v2, github.com/prebid/prebid-server/v3 and 1 more4.4.0
Show all 4 entries from 1 source
SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/prebid/prebid-serverno fix listed
go::GitHub Security Advisory Gogithub.com/prebid/prebid-server/v2no fix listed
go::GitHub Security Advisory Gogithub.com/prebid/prebid-server/v3no fix listed
go::GitHub Security Advisory Gogithub.com/prebid/prebid-server/v44.4.0

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.