{"id":"CVE-2020-12439","details":"Grin before 3.1.0 allows attackers to adversely affect availability of data on a Mimblewimble blockchain.","aliases":["GHSA-6x52-88cq-55q5"],"modified":"2026-07-08T23:34:19.172769Z","published":"2020-05-05T22:15:12.933Z","references":[{"type":"ADVISORY","url":"https://github.com/mimblewimble/grin-security/blob/master/CVEs/CVE-2020-12439.md"},{"type":"FIX","url":"https://github.com/mimblewimble/grin/issues/3235"},{"type":"FIX","url":"https://github.com/mimblewimble/grin/pull/3236"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mimblewimble/grin","events":[{"introduced":"0"},{"fixed":"533da2d192e0502c8b8251619176f1dd4a57a796"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.1.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:grin:grin:*:*:*:*:*:*:*:*"}}],"versions":["v3.1.0-beta.3","v3.1.0-beta.2","v3.1.0-beta.1","v3.0.0-beta.3","v3.0.0-beta.2","v3.0.0-beta.1","v2.1.0-beta.3","v2.1.0-beta.2","v2.1.0-beta.1","v2.0.0","2.0.0-beta.2","v1.1.0","v1.1.0-beta.2","v1.0.3","v1.0.2","v1.0.1","v1.0.0","v0.5.2","v0.5.1","v0.5.0","v0.4.2","0.4.0","0.0.0-pre.0.3.0.t3","0.0.0-pre.0.3.0.1","0.0.0-pre.0.3.0","release_test_1","testnet3","testnet2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12439.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}