PYSEC-2026-2296

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/ve-ray/PYSEC-2026-2296.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-2296
Aliases
Published
2026-05-08T22:16:29Z
Modified
2026-07-13T07:26:16Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Ray is an AI compute engine. From version 2.54.0 to before version 2.55.0, Ray Data registers custom Arrow extension types (ray.data.arrow_tensor, ray.data.arrow_tensor_v2, ray.data.arrow_variable_shaped_tensor) globally in PyArrow. When PyArrow reads a Parquet file containing one of these extension types, it calls arrow_ext_deserialize on the field's metadata bytes. Ray's implementation passes these bytes directly to cloudpickle.loads(), achieving arbitrary code execution during schema parsing, before any row data is read. This issue has been patched in version 2.55.0.

References

Affected packages

PyPI / ve-ray

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
2.54.0

Affected versions

2.*
2.44.0.1
2.44.0.2
2.46.0.0
2.46.0.1
2.46.0.2

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/ve-ray/PYSEC-2026-2296.yaml"