CVE-2026-93034

CVE-2026-93034

State
Published
Severity
9.8 Critical
Published
Oct 8, 2026
Updated
Oct 8, 2026
Reserved
Sep 17, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

  • CWE-502 Deserialization of Untrusted Data

Affected Products

ProductVersions
SGLangSGLang
  • v0.5.20 and earlierAffected

References

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