CVE-2026-76843 PUBLISHED

Flair 0.15.0 and 0.15.1 Deserialization of Untrusted Data via ClusteringModel.load

Assigner: VulnCheck
Reserved: 19.08.2026 Published: 24.08.2026 Updated: 24.08.2026

The official Flair wheels for 0.15.0 and 0.15.1 still contain flair/models/clustering.py, whose ClusteringModel.load static method returns pickle.loads(joblib.load(str(model_file))) and so executes arbitrary Python while loading a model file. Loading a model supplied by an attacker therefore runs that attacker's code with the privileges of the loading process. This is the same sink and the same file as CVE-2024-10073, which records 0.15.0 as the fixed version on the basis that clustering support was dropped in that release; the module was removed from the documented API but remains present in the distributed artifact and reachable by importing flair.models.clustering directly, so the earlier record's fixed version does not hold for the shipped package.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.4

Product Status

Vendor flairNLP
Product flair
Versions Default: unaffected
  • affected from 0.15.0 to 0.15.1 (incl.)

Credits

  • Michael Holmquist finder

References

Problem Types

  • Deserialization of Untrusted Data CWE