{"action":"Upgrade electrum to 4.8.3+dfsg-1 or later.","affected":[{"fixed":"4.8.3+dfsg-1","introduced":"0"}],"component":"electrum","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.8.3+dfsg-1"],"id":"tcs_01M61115BRNFS1FNN9ZZQ1DNJR","modified_at":"2026-10-29T23:00:06.913262856Z","published_at":"2026-10-27T14:16:39.947Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-117601","https://security-tracker.debian.org/tracker/CVE-2026-117601"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-117601#Debian:14/electrum","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-117601"}],"summary":"Electrum before 4.8.3 fails to verify signatures of wallet-owned inputs in unconfirmed mempool transactions, allowing malicious servers to replace a just-broadcast transaction with a conflicting one."}