{"id":"CVE-2021-43669","details":"A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.0.1, v2.3.0. It can easily break down as many orderers as the attacker wants. This bug can be leveraged by constructing a message whose header is invalid to the interface Order. This bug has been admitted and fixed by the developers of Fabric.","aliases":["GHSA-j96p-r523-8r3w"],"modified":"2026-08-07T19:47:04.477906Z","published":"2021-11-18T16:15:09.323Z","references":[{"type":"ADVISORY","url":"https://jira.hyperledger.org/browse/FAB-18528"},{"type":"FIX","url":"https://github.com/hyperledger/fabric/pull/2828"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hyperledger/fabric","events":[{"introduced":"d700b43476e803c864c48021e63a78543b60e17e"},{"last_affected":"ec81f3e74fa127fc504b1c2249b19ec421ea2a1d"}],"database_specific":{"source":"CPE_STRING","cpe":["cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:*","cpe:2.3:a:linuxfoundation:fabric:2.0.0:*:*:*:*:*:*:*","cpe:2.3:a:linuxfoundation:fabric:2.0.1:*:*:*:*:*:*:*","cpe:2.3:a:linuxfoundation:fabric:2.3.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.4.0"},{"last_affected":"1.4.0"},{"introduced":"2.0.0"},{"last_affected":"2.0.0"},{"introduced":"2.0.1"},{"last_affected":"2.0.1"},{"introduced":"2.3.0"},{"last_affected":"2.3.0"}]}}],"versions":["1.4.0","2.0.0","2.0.1","2.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43669.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}