Xorbits Xoscar 0.11.2 Unauthenticated Deserialization RCE via Actor Pool
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.
CVE-2026-49950
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-49950
xoscar
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/xorbitsai/xoscar",
"vendor": "xorbitsai",
"product": "xoscar",
"versions": [
{
"status": "affected",
"version": "0.1.0",
"versionType": "semver",
"lessThanOrEqual": "0.11.2"
}
],
"packageURL": "pkg:github/xorbitsai/xoscar",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-49950
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #32490 · Revision 1
- Added to Heist Feed
- Publisher date