CVE-2026-49950 (GCVE-0-2026-49950)

Vulnerability from cvelistv5 – Published: 2026-10-13 20:20 – Updated: 2026-10-14 17:00 X_Open Source
VLAI
Title
Xorbits Xoscar 0.11.2 Unauthenticated Deserialization RCE via Actor Pool
Summary
Xorbits Xoscar through 0.11.2 contains an unauthenticated deserialization vulnerability that allows remote attackers to execute arbitrary code by sending crafted data over the actor-pool TCP channel. Attackers can exploit SocketChannel.recv() passing unvalidated data to cloudpickle.loads(), which triggers pickle __reduce__ gadget execution before message type validation, achieving remote code execution as the server process which commonly runs as root on GPU nodes.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 17:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
xorbitsai xoscar Affected: 0.1.0 , ≤ 0.11.2 (semver)
guessed Create a notification for this product.
Date Public
2026-10-13 00:00
Credits
Valentin Lobstein (Chocapikk)
Show details on NVD website
To clipboard 

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