CVE-2026-3989
Last modified
CVE-2026-3989 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lmsys | Sglang | < 0.5.10 |
References
- https://github.com/sgl-project/sglang/pull/20904Issue Tracking, Patch
- https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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