What is CVE-2026-3071?

CVE-2026-3071 is a high-severity vulnerability in Flair, classified under Deserialization of Untrusted Data. CVSS score: 8.4/10. Published 2026-02-26.

How severe is CVE-2026-3071?

High severity. CVSS v3 base score is 8.4 out of 10.

Deserialization in Flair

CVE-2026-3071

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.002 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Flair — versions 0.4.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

6f8de1f0-f67e-45a6-b68f-98777fdb759c

Frequently asked questions

What is CVE-2026-3071?: CVE-2026-3071 is a high-severity vulnerability in Flair, classified under Deserialization of Untrusted Data. CVSS score: 8.4/10. Published 2026-02-26.
How severe is CVE-2026-3071?: High severity. CVSS v3 base score is 8.4 out of 10.