high7.8
CVE-2026-3989
SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | sglang | <= 0.5.9 | 0.5.10 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Lmsys | Sglang | before 0.5.10 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/sgl-project/sglang/blob/main/scripts/playground/replay_request_dump.py
- https://github.com/sgl-project/sglang/pull/20904
- https://github.com/sgl-project/sglang/releases/tag/v0.5.10
- https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities/
- https://github.com/advisories/GHSA-hvwj-8w5g-28rg
- https://nvd.nist.gov/vuln/detail/CVE-2026-3989
- https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities