CVE-2026-3071 PUBLISHED

Assigner: HiddenLayer
Reserved: 23.02.2026 Published: 26.02.2026 Updated: 26.02.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.4

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Flair
Product	Flair
Versions	Default: unaffected affected from 0.4.1 to * (incl.)

References

https://www.hiddenlayer.com/sai-security-advisory/2026-02-flair

Problem Types

CWE-502 Deserialization of Untrusted Data CWE

Impacts

CAPEC-586 Object Injection