CVE-2026-49950
CVE-2026-49950 · Xorbits Xoscar 0.11.2 Unauthenticated Deserialization RCE via Actor Pool
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 9.3 · Crítica · EPSS 0,9%
- Publicación
- Actualización
Productos y versiones afectados
xoscar
- Versiones
- ≥ 0.1.0, ≤ 0.11.2: Afectada (semver)
Sin corrección publicada
Fuentes originales
- https://github.com/xorbitsai/xoscar/blob/v0.11.2/python/xoscar/serialization/core.pyx#L260
- https://github.com/xorbitsai/xoscar/blob/v0.11.2/python/xoscar/backends/communication/socket.py#L99-L104
- https://www.vulncheck.com/advisories/xorbits-xoscar-unauthenticated-deserialization-rce-via-actor-pool
- https://www.vulncheck.com/blog/xorbits-xoscar-unauth-cloudpickle-rce
- https://nvd.nist.gov/vuln/detail/CVE-2026-49950