| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-6jp4-8v48-cc5v | Electrum: Malicious server can replace a just-broadcast tx and try to trick user into RBF-ing it |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 28 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 27 Oct 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Electrum before 4.8.3 fails to verify signatures of wallet-owned inputs in unconfirmed mempool transactions, allowing malicious servers to replace a just-broadcast transaction with a conflicting one. Attackers can swallow the user's transaction and display an invalid zero-fee copy paying an attacker address, tricking users into RBF fee-bumping and signing it. | |
| Title | Electrum before 4.8.3 Missing Signature Verification of Mempool Transactions | |
| First Time appeared |
Electrum
Electrum electrum |
|
| Weaknesses | CWE-347 | |
| CPEs | cpe:2.3:a:electrum:electrum:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Electrum
Electrum electrum |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-28T16:16:43.752Z
Reserved: 2026-10-27T13:04:09.905Z
Link: CVE-2026-117601
Updated: 2026-10-28T15:56:47.895Z
Status : Awaiting Analysis
Published: 2026-10-27T14:16:39.947
Modified: 2026-10-28T17:18:17.600
Link: CVE-2026-117601
No data.
OpenCVE Enrichment
Updated: 2026-10-27T16:15:04Z
Github GHSA