{"id":"CVE-2026-117603","revision":"602aed062ebf40269a64ae69dc3d1ec2","records":[{"revision":"602aed062ebf40269a64ae69dc3d1ec2","observedAt":"2026-10-27T15:09:21.953+00:00","statement":{"source":"cve-program","id":"CVE-2026-117603","aliases":[],"title":"Electrum before 4.7.2 Nostr Wallet Connect Plugin Daily Spending Limit Bypass","description":"Electrum before 4.7.2 contains a spending limit bypass vulnerability in the Nostr Wallet Connect plugin that allows malicious NWC clients to exceed daily_limit_sat by exploiting non-atomic budget checks and millisatoshi truncation. Attackers can send concurrent pay_invoice requests that pass budget_allows_spend() before add_to_budget() runs, or repeatedly pay msat amounts that are floored to whole satoshis, to drain funds beyond the limit.","state":0,"publishedAt":"2026-10-27T13:09:52.728+00:00","modifiedAt":"2026-10-27T13:09:52.728+00:00","affected":[{"ecosystem":"Vendor product","name":"electrum","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"spesmilo\",\n                    \"product\": \"electrum\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"4.7.2\"\n                        },\n                        {\n                            \"version\": \"4.7.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/spesmilo/electrum/security/advisories/GHSA-q7m2-785w-r585","https://github.com/spesmilo/electrum/commit/5222374046d2a92da371d46c79ce0e61e7e2a42d","https://github.com/spesmilo/electrum/commit/3956bff0684f6060fbe8c823c3ee921928cdcaa5","https://www.vulncheck.com/advisories/electrum-before-4.7.2-nostr-wallet-connect-plugin-daily-spending-limit-bypass"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-117603","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-117603","identifiers":["CVE-2026-117603"]},"retained":false,"historicalAffected":[]}],"coverage":[]}