CVE-2026-3989
SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization
7.8
HIGH
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-3989
To remediate CVE-2026-3989, upgrade the affected package to a fixed version below.
- —upgrade to 0.5.10 or later
Is CVE-2026-3989 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.5.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |