CVE-2026-93034

CVSS 9.8 (critical) · published 2026-10-08

SGLang contains an arbitrary code execution vulnerability caused by the ZMQ message decoder unconditionally deserializing PickleWrapper payloads via pickle.loads() in _maybe_unwrap_pickle without type allowlisting or authentication; this vulnerability persists via the msgpack path even when SGLANG_USE_PICKLE_IPC is disabled, and becomes remotely exploitable if data-parallel attention is enabled with a non-loopback --dist-init-addr setting.

Weakness: CWE-502

Source: NVD CVE-2026-93034

References

• https://github.com/sgl-project/sglang/tree/main
• https://m00dy.sh/notes/disabling-pickle-did-not-remove-pickle?palette=mineral

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