Open Whisper Signal (aka Signal-Desktop) before 1.15.0-beta.10 allows information leakage.

published 2018-08-20 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-5953

cvss: 4.0; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

Patch / fix

fixed in 1

signal signal-desktop 1.15.0

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

n0sign4l.blogspot.com http://n0sign4l.blogspot.com/2018/08/advisory-id-n0sign4l-002-risk-level-4-5.html?m=1 referenced PoC, tagged "exploit" by a source, unverified
youtube.com https://www.youtube.com/watch?v=oSJscEei5SE&app=desktop referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.0	CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

n0sign4l.blogspot.com /2018/08/advisory-id-n0sign4l-002-risk-level-4-5.html?m=1
exploit, third-party-advisory
youtube.com /watch?v=oSJscEei5SE&app=desktop
exploit, third-party-advisory

Sources

CVE List CVE-2018-14023
NVD CVE-2018-14023

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary