{"action":"Upgrade CoreWCF.Kafka to 1.8.1 (1.8.x) or 1.9.1 (1.9.x) or later.","affected":[{"fixed":"1.8.1","introduced":"0"},{"fixed":"1.9.1","introduced":"1.9.0"}],"component":"CoreWCF.Kafka","cve_ids":["CVE-2026-54775"],"ecosystem":"NuGet","epss":0.00598,"exploited":false,"fixed_versions":["1.8.1","1.9.1"],"ghsa_id":"GHSA-m744-jhq9-ppw6","id":"tcs_01M5N8TKDX53E4RPF9V975YK6K","modified_at":"2026-06-19T21:11:30.272378Z","published_at":"2026-06-19T20:46:49Z","references":["https://osv.dev/vulnerability/GHSA-m744-jhq9-ppw6","https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6","https://github.com/CoreWCF/CoreWCF"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-m744-jhq9-ppw6","url":"https://osv.dev/vulnerability/GHSA-m744-jhq9-ppw6"}],"summary":"CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service."}