Advisory record · GHSA-36m8-w8qf-g76p

SGLang: Unauthenticated RCE via --enable-custom-logit-processor

CVSS 9.8 CriticalCriticalEPSS 0.0059 · 48th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 29 Jun 2026, 11:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
sglangPyPI>=0.4.1.post7, <=0.5.12No fixed version yet
Identifiers
GHSA-36m8-w8qf-g76p · CVE-2026-7304 · PYSEC-2026-535
Weakness (CWE)
CWE-502
Published
29 Jun 2026
Updated
1 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

SGLang versions from 0.4.1.post7 through 0.5.12 are vulnerable to unauthenticated remote code execution when the --enable-custom-logit-processor option is turned on. The flaw lies in deserializing Python objects with dill.loads() without validation, so an attacker who can send requests to the server could run code on it. No fixed version is listed, so the source offers no upgrade; disabling --enable-custom-logit-processor is the available mitigation.

Written 10 Nov 2026.

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

ScoreRatingCVSSVectorSource
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 0.0059, the 48th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 29 Jun 2026. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.