Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV N L N N N H H H 9.3 .0063 49.2 —
AFFECTED Product Versions Fixed xoscar 0.1.0 – —
TIMELINE Jun 2 Reserved by VulnCheck Oct 13 Published (CNA: VulnCheck) Oct 16 EXPLOIT PUBLISHED — CVE-2026-49950 (xorbitsai xoscar). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| June 2, 2026 | Reserved | Reserved by VulnCheck |
| October 13, 2026 | Published | Published (CNA: VulnCheck) |
| October 16, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-49950 (xorbitsai xoscar). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| xorbitsai | xoscar | — | 0.1.0 | — |
Authoritative record: CVE-2026-49950 at cve.org
Vendors: xorbitsai
Weaknesses: CWE-502
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49950 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
