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 prope…
Exact source revision recorded 25 Oct 2026 13:17:34 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-54735
PublishedPrebid 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.
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-918
Original publisher date fields
published: 2026-07-29T16:17:54.317
lastModified: 2026-10-23T23:10:00.157
1 source CPE criteria · context only
- cpe:2.3:a:prebid:prebid_server:*:*:*:*:*:go:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 29 Jul 2026 16:17:54 UTC
- Source modified
- 23 Oct 2026 23:10:00 UTC
- Observed here
- 25 Oct 2026 13:17:34 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 3.1 · [email protected] · Secondary · 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H