CVE-2026-5760

9.8 criticalEPSS 0.9%

Critical (9.8) in lmsys sglang. EPSS 0.9% chance of exploitation in the next 30 days.

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().

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2026-04-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

lmsys:sglang

References

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

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