High 7.8Published Mar 12, 2026

CVE-2026-3989CVE-2026-3989

Updated under an hour ago (Oct 26, 2026, 5:23 AM ET)

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It affects SGLang and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for SGLang

Exploited in the last 30 days

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: 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: certcc
NVD analysis: Analyzed
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SGLang SGLang sglang:sglang (from the name)	0.5.10	CNA record
lmsys sglang lmsys:sglang	before 0.5.10	NVD

References

https://github.com/sgl-project/sglang/blob/main/scripts/playground/replay_request_dump.pyproduct
https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities/exploit, third-party-advisory
https://github.com/sgl-project/sglang/releases/tag/v0.5.10release-notes
https://github.com/sgl-project/sglang/pull/20904issue-tracking, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.