CVE-2026-49950
CRITICAL
CVSS 9.8
Published: 2026-10-13
Modified: 2026-10-14
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Description
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.
Quick Facts
| CVE ID | CVE-2026-49950 |
| CVSS Score | 9.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-13 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |