Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
SGLang versions >=0.5.5 through 0.5.12 are affected. The multimodal generation scheduler's ROUTER socket binds to 0.0.0.0 by default and deserializes incoming messages with pickle.loads(), so an attacker with network access to that socket can execute arbitrary code. The source gives few details on the exact deployment conditions. No fix is listed, so restrict network access to the scheduler port and do not expose it to untrusted networks.
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 0.0040, the 34th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.