MEDIUMCVSS v3.1 4.3Vulnerability
CVE-2026-117603
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-27T15:29:09.616245+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 4.3
- Retrieved at
- 2026-10-27T15:31:26+00:00
- Score
- 4.3
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-117603
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- First seen by Signal
- 2026-10-27T15:31:26+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Published at
- 2026-10-27T14:16:40.233
- Last modified
- 2026-10-27T14:16:40.233
Related Entities (1)
HAS_WEAKNESS (1)
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