DEBIAN-CVE-2026-117601

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Source
https://security-tracker.debian.org/tracker/CVE-2026-117601
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117601.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-117601
Upstream
Published
2026-10-27T14:16:39Z
Modified
2026-10-29T23:00:06Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / electrum

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.3.4+dfsg1-1
4.3.4+dfsg1-1+deb12u1
4.4.5+dfsg1-1~bpo12+1
4.4.5+dfsg1-1
4.4.5+dfsg1-2
4.4.5+dfsg1-3~bpo12+1
4.4.5+dfsg1-3
4.4.6+dfsg-1~bpo12+1
4.4.6+dfsg-1
4.4.6+dfsg2-1~bpo12+1
4.4.6+dfsg2-1
4.5.2+dfsg-1
4.5.2+dfsg-2~bpo12+1
4.5.2+dfsg-2
4.5.4+dfsg-1~bpo12+1
4.5.4+dfsg-1
4.5.4+dfsg-2
4.5.4+dfsg-3~bpo12+1
4.5.4+dfsg-3
4.5.5+dfsg-1~bpo12+1
4.5.5+dfsg-1
4.5.5+dfsg-2
4.5.5+dfsg-3
4.5.5+dfsg-4~bpo12+1
4.5.5+dfsg-4
4.5.8+ds-1~bpo12+1
4.5.8+ds-1
4.5.8+ds-2
4.5.8+ds-3~bpo12+1
4.5.8+ds-3
4.5.8+ds-4
4.5.8+ds-5~bpo12+1
4.5.8+ds-5
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
4.8.1+dfsg-1
4.8.3+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117601.json"

Debian:13 / electrum

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

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
4.8.1+dfsg-1
4.8.3+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117601.json"

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
4.8.3+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
4.8.1+dfsg-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-117601.json"