Input validation error in Ray - CVE-2026-41486
Published: April 24, 2026
Vulnerability identifier: #VU127508
CSH Severity: High
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-41486
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the "_deserialize_with_fallback" function within Parquet Arrow extension. A remote attacker can execute arbitrary code on the system.
Affected software
Ray
How to mitigate CVE-2026-41486
Install updates from vendor's website.
Ray - update to 2.55.0