CVE-2026-3989

State: Published
Severity: 7.8 High
Published: Mar 12, 2026
Updated: Apr 7, 2026
Reserved: Mar 11, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
SGLangSGLang	0.5.10Affected

References

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

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