Description
Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to obtain potentially sensitive attachments sent in messages from the attachments.noindex directory. Cached attachments are not effectively cleared. In some cases, even after a self-initiated file deletion, an attacker can still recover the file if it was previously replied to in a conversation. (Local filesystem access is needed by the attacker.) NOTE: the vendor disputes the relevance of this finding because the product is not intended to protect against adversaries with this degree of local access.
References (4)
Core 4
Core References
Exploit, Third Party Advisory
https://johnjhacking.com/blog/cve-2023-24068-cve-2023-24069/
Product, Vendor Advisory
https://signal.org/download/linux
Product, Vendor Advisory
https://signal.org/download/macos
Product, Vendor Advisory
https://signal.org/en/download/windows
Scores
CVSS v3
3.3
EPSS
0.0086
EPSS Percentile
53.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-200
Status
published
Products (1)
signal/signal-desktop
< 6.2.0
Published
Jan 23, 2023
Tracked Since
Feb 18, 2026