CVE-2026-3989: SGLangs `replay_request_dump.py` contains an insecure pickle.load() without validation and proper deserialization
(updated )
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.
References
- github.com/advisories/GHSA-hvwj-8w5g-28rg
- github.com/sgl-project/sglang
- github.com/sgl-project/sglang/blob/main/scripts/playground/replay_request_dump.py
- github.com/sgl-project/sglang/pull/20904
- github.com/sgl-project/sglang/releases/tag/v0.5.10
- nvd.nist.gov/vuln/detail/CVE-2026-3989
- orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities
Code Behaviors & Features
Detect and mitigate CVE-2026-3989 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →