CVE-2026-54735
CVE-2026-54735 updated by NVD
Summary
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
| Ecosystem | Package | Affected versions | Fixed versions |
|---|---|---|---|
| Go | github.com/prebid/prebid-server/v4 | — | 4.4.0 |
| Go | github.com/prebid/prebid-server/v3 | — | — |
| Go | github.com/prebid/prebid-server/v2 | — | — |
| Go | github.com/prebid/prebid-server | — | — |
Remediation: Upgrade to 4.4.0 or later.
References
Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.
Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.
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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.