Description
Deserialization of untrusted data in the LanguageModel class of Flair from versions 0.4.1 to latest are vulnerable to arbitrary code execution when loading a malicious model.
References (1)
Core 1
Core References
Various Sources
https://www.hiddenlayer.com/sai-security-advisory/2026-02-flair
Scores
CVSS v3
8.4
EPSS
0.0015
EPSS Percentile
4.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-502
Status
published
Products (1)
Flair/Flair
0.4.1
Published
Feb 26, 2026
Tracked Since
Feb 26, 2026