DEBIAN-CVE-2026-117603

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Source
https://security-tracker.debian.org/tracker/CVE-2026-117603
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117603.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-117603
Upstream
Published
2026-10-27T14:16:40Z
Modified
2026-11-02T16:00:07Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:14 / electrum

Package

Name
electrum
Purl
pkg:deb/debian/electrum?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.8.1+dfsg-1

Affected versions

4.*
4.5.8+ds-6
4.5.8+ds-7
4.5.8+ds-8
4.6.2+dfsg-1
4.6.2+dfsg-2~bpo13+1
4.6.2+dfsg-2
4.7.0+dfsg-1~bpo13+1
4.7.0+dfsg-1
4.7.0+dfsg2-1
4.7.1+dfsg-1
4.7.2+dfsg-1~bpo13+1
4.7.2+dfsg-1
4.7.2+dfsg-2
4.8.1+dfsg-1~bpo13+1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117603.json"