{"action":"Upgrade github.com/prebid/prebid-server/v4 to 4.4.0 or later.","affected":[{"fixed":"4.4.0","introduced":"0"}],"component":"github.com/prebid/prebid-server/v4","cve_ids":["CVE-2026-54735"],"ecosystem":"Go","epss":0.00611,"exploited":false,"fixed_versions":["4.4.0"],"ghsa_id":"GHSA-4p3g-4hcj-wpvx","id":"tcs_01M5KEWY64Y0T92TG9BDDPGZK1","modified_at":"2026-08-18T17:23:47.704399899Z","published_at":"2026-07-29T16:00:36Z","references":["https://osv.dev/vulnerability/GHSA-4p3g-4hcj-wpvx","https://github.com/prebid/prebid-server/security/advisories/GHSA-4p3g-4hcj-wpvx","https://github.com/prebid/prebid-server/pull/4802","https://github.com/prebid/prebid-server/commit/494ac271cd4b5024df9123ef25ca3cff96390be3","https://github.com/prebid/prebid-server","https://github.com/prebid/prebid-server/releases/tag/v4.4.0"],"severity":{"label":"critical","score":10},"sources":[{"source":"osv","source_id":"GHSA-4p3g-4hcj-wpvx","url":"https://osv.dev/vulnerability/GHSA-4p3g-4hcj-wpvx"}],"summary":"prebid-server's request forgery vulnerability allows for possible host environment data extraction"}