CVE-2026-41486

Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization

En bref

Sévérité: HIGH 8.9
EPSS: EPSS 0.47 % · centile 41 (2026-10-27)
État: PUBLISHED
Publiée: 2026-05-08
Mise à jour: 2026-05-12
Attribuée par: GitHub_M
Statut NVD: Analyzed

Description

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.

Scores

Version	Score	Vecteur	Évalué par
CVSS 4.0	HIGH 8.9	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	GitHub_M
CVSS 4.0	HIGH 8.9	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Avis

GHSA-mw35-8rx3-xf9r — Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization
PYSEC-2026-2272 — 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.arro
PYSEC-2026-2296 — 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.arro

Références européennes

ENISA EUVD · EUVD-2026-28828
GCVE · GCVE-0-2026-41486

Configurations affectées (CPE NVD)

cpe:2.3:a:anyscale:ray:2.54.0:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
ray-project · ray	affected >= 2.54.0, < 2.55.0

Références

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD