CVE-2026-76843

Source
https://cve.org/CVERecord?id=CVE-2026-76843
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-76843.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-76843
Published
2026-08-24T13:12:00.470Z
Modified
2026-08-27T11:47:27.928747210Z
Severity
  • 8.4 (High) CVSS_V4 - 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 Calculator
Summary
Flair 0.15.0 and 0.15.1 Deserialization of Untrusted Data via ClusteringModel.load
Details

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.

Database specific
{
    "cwe_ids": [
        "CWE-502"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76843.json"
}
References

Affected packages

Git / github.com/flairnlp/flair

Affected ranges

Type
GIT
Repo
https://github.com/flairnlp/flair
Events
Database specific
Show details
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.15.0"
        },
        {
            "last_affected": "0.15.1"
        }
    ]
}

Affected versions

v0.*
v0.15.0
v0.15.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-76843.json"