CVE•Published 2026-10-27•Modified 2026-10-27•0 articles on news•4 live references•NVD data
CVE-2026-117603
Vulnerability data via NVD (ingested)
CVSS v3.1
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS percentile
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Weaknesses (CWE)
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.
Timeline
Published 2026-10-27
Modified 2026-10-27
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-117603Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-117603Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-117603Censys host search filtered to this CVE id.
grep.app
CVE-2026-117603Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-117603GitHub code search for direct mentions.
Google dork
"CVE-2026-117603" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-117603 on GitHub.
We haven't classified any articles referencing CVE-2026-117603 yet. The external references above still apply.