CVE-2026-49950criticalCWE-502

CVE-2026-49950: fallo crítico en xorbitsai xoscar

Xorbits Xoscar 0.11.2 Unauthenticated Deserialization RCE via Actor Pool

Publicada el · Actualizada el

48Vexday Risk Score

Sin señal de explotación. Ella tiene prueba de concepto pública.

ssvc Attendcvss 9.3epss 0.9%
probabilidad de explotación
0.9%top 42% de las CVE
explotación observada
noninguna fuente lo reporta
1 exploit(s) público(s)
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
xorbitsai · xoscar
PoCs públicas encontradas — 1
cve_referencewww.vulncheck.com/blog/xorbits-xoscar-unauth-cloudpickle-rceno verificado
⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
Referencias
https://github.com/xorbitsai/xoscar/blob/v0.11.2/python/xoscar/backends/communication/socket.py#L99-L104https://github.com/xorbitsai/xoscar/blob/v0.11.2/python/xoscar/serialization/core.pyx#L260https://www.vulncheck.com/advisories/xorbits-xoscar-unauthenticated-deserialization-rce-via-actor-poolhttps://www.vulncheck.com/blog/xorbits-xoscar-unauth-cloudpickle-rce