RCE in Anyscale Ray
CVE-2026-41486
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 P…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.000 (12.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Anyscale Ray — versions 2.54.0
- Ray-project Ray — versions >= 2.54.0, < 2.55.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-41486?
- CVE-2026-41486 is a high-severity vulnerability in Anyscale Ray, classified under Code Injection. CVSS score: 8.8/10. Published 2026-05-08.
- How severe is CVE-2026-41486?
- High severity. CVSS v3 base score is 8.8 out of 10.