CVE-2026-5760CRITICAL 9.8EPSS p53.4%

CVE-2026-5760CVE-2026-5760

lmsys / sglang

Description

SGLang's reranking endpoint (/v1/rerank) achieves Remote Code Execution (RCE) when a model file containing a malcious tokenizer.chat_template is loaded, as the Jinja2 chat templates are rendered using an unsandboxed jinja2.Environment().

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.85% probability of exploitation · percentile 53.4% · 2026-06-19T12:03:05Z
Published2026-04-20
Last modified2026-06-03

Underlying weaknesses· 1

CWE-94

References

  1. https://github.com/Stuub/SGLang-0.5.9-RCE
  2. https://github.com/sgl-project/sglang/pull/23660
  3. https://www.kb.cert.org/vuls/id/915947

1

TypeTargetConfidenceTier
WeaknessImproper Control of Generation of Code ('Code Injection')cwe-940%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.