Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
SGLang versions before 0.5.10 are vulnerable in the multimodal generation module, where the ZMQ broker deserializes untrusted data with pickle.loads() and does not require authentication. An attacker with network access to the broker can exploit this to execute arbitrary code on the host. Upgrade sglang to version 0.5.10 or later. The source gives few details beyond this.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | OSV |
- CISA KEV Not listed.
- EPSS 0.018, the 78th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:04 UTC First seen by agentprime
- 31 Oct 2026, 15:04 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-3cp7-c6q2-94xr
- OSV: GHSA-3cp7-c6q2-94xr
- github.com/sgl-project/sglang/security/advisories/GHSA-3cp7-c6q2-94xr
- nvd.nist.gov/vuln/detail/CVE-2026-3059
- github.com/sgl-project/sglang/pull/20904
- github.com/sgl-project/sglang
- github.com/sgl-project/sglang/blob/main/python/sglang/multimodal_gen/runtime/scheduler_client.py
- github.com/sgl-project/sglang/releases/tag/v0.5.10
- orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities
- pypi.org/project/sglang
- github.com/advisories/GHSA-rgq9-fqf5-fv58