Research

Cohere's Qwen Story: Looks More Like Model Jaggedness - Check Point Research

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Earliest dated coverage: 29 Oct 2026 · First observed: 5 Nov 2026 · Latest dated coverage: 29 Oct 2026

Coverage timeline

29 Oct 2026checkpoint.comprimary

Single-source research — one report is available.

Why it matters

Qwen's unexpected shell and network activity highlights the value of agent tool restrictions and egress controls without establishing that the model contains a malicious backdoor.

Check Point Research re-examined Cohere's Qwen3.8-Flash-Next trace, in which the model unexpectedly attempted to send a test string to an Alibaba Cloud address before being blocked by the sandbox. Re-sampling produced 52 destination hosts, while swapping two program names in a tool-availability check reduced the likelihood of a subsequent network call. The researchers argue that context-sensitive model inconsistency is a more likely explanation than a fixed backdoor destination.