# Electrum vulnerabilities

Source: https://junglewise.ai/threats/technologies/electrum  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/electrum.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Electrum: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-117603, was published on 27 October 2026. 3 vulnerabilities in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 3
- Last 90 days: 3
- All time: 3 (0 critical, 0 exploited in the wild)

## About Electrum

Bitcoin wallet software with SPV (simplified payment verification) support.

## Latest Electrum vulnerabilities

- [CVE-2026-117603: Electrum spending limit bypass in Nostr Wallet Connect plugin](https://junglewise.ai/threats/cve-2026-117603-electrum-before-4-7-2-contains-a-spending-limit-bypass) (medium, CVSS 4.3, published 27 Oct 2026)
- [CVE-2026-117602: Electrum authorization bypass in external plugin loader](https://junglewise.ai/threats/cve-2026-117602-electrum-4-6-0-before-4-7-2-contains-an-authorization-bypass-in) (high, CVSS 8.4, published 27 Oct 2026)
- [CVE-2026-117601: Electrum signature verification bypass in mempool transactions](https://junglewise.ai/threats/cve-2026-117601-electrum-before-4-8-3-fails-to-verify-signatures-of-wallet-owned) (high, CVSS 7.5, published 27 Oct 2026)

## Most severe Electrum vulnerabilities

- [CVE-2026-117602: Electrum authorization bypass in external plugin loader](https://junglewise.ai/threats/cve-2026-117602-electrum-4-6-0-before-4-7-2-contains-an-authorization-bypass-in) (high, CVSS 8.4, published 27 Oct 2026)
- [CVE-2026-117601: Electrum signature verification bypass in mempool transactions](https://junglewise.ai/threats/cve-2026-117601-electrum-before-4-8-3-fails-to-verify-signatures-of-wallet-owned) (high, CVSS 7.5, published 27 Oct 2026)
- [CVE-2026-117603: Electrum spending limit bypass in Nostr Wallet Connect plugin](https://junglewise.ai/threats/cve-2026-117603-electrum-before-4-7-2-contains-a-spending-limit-bypass) (medium, CVSS 4.3, published 27 Oct 2026)

## Vulnerabilities per week

3 vulnerabilities in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 3 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Electrum vulnerabilities", https://junglewise.ai/threats/technologies/electrum, 9 November 2026.