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CVE-2026-3989

CVE-2026-3989

CVSS 7.8 HIGHEPSS 0.3%
SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization. An attacker can take advantage of this by providing a malicious .pkl file, which will execute the attackers code on the device running the script.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
SGLang · SGLang

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References
https://github.com/sgl-project/sglang/blob/main/scripts/playground/replay_request_dump.pyhttps://github.com/sgl-project/sglang/pull/20904https://github.com/sgl-project/sglang/releases/tag/v0.5.10https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities/