Description
MetaMask before 10.11.3 might allow an attacker to access a user's secret recovery phrase because an input field is used for a BIP39 mnemonic, and Firefox and Chromium save such fields to disk in order to support the Restore Session feature, aka the Demonic issue.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/MetaMask/metamask-extension/compare/v10.11.2...v10.11.3
Third Party Advisory x_refsource_misc
https://halborn.com/disclosures/demonic-vulnerability/
Third Party Advisory x_refsource_misc
https://halborn.com/halborn-discovers-critical-vulnerability-affecting-crypto-wallet-browser-extensions/
Scores
CVSS v3
5.9
EPSS
0.0124
EPSS Percentile
65.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-281
Status
published
Products (1)
metamask/metamask
< 10.11.3
Published
Jun 29, 2022
Tracked Since
Feb 18, 2026