CVE-2026-5760

⛔ critical

Summary

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().

CVSS Score

9.8

Critical

EPSS Score

0.6

Exploit Probability

Published Date

2026-04-20

First Seen: 2026-04-21

📊 Relative Risk Intelligence

This CVE is Very High Risk - more severe than 90.5% of all 326,604 vulnerabilities in our database.

#31,067

Top 10% most severe

Severity Percentile

🎯 CISA SSVC Assessment Updated: Apr 20, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

YES

Can be exploited automatically

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-06-03

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-94

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
lmsys	sglang	Affected	< 0.5.11

🔗 References 3

https://github.com/Stuub/SGLang-0.5.9-RCE

Exploit Third Party Advisory

https://github.com/sgl-project/sglang/pull/23660

Issue Tracking Patch

https://www.kb.cert.org/vuls/id/915947

Third Party Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-7301	⛔ critical	9.8	0.1	SGLangs multimodal generation runtime scheduler's ROUTER socket binds to 0.0.0.0 by default and contains a sink that cal...	2026-05-18
CVE-2026-7302	⛔ critical	9.1	0.1	SGLangs multimodal generation runtime is vulnerable to an unauthenticated path traversal vulnerability, allowing an atta...	2026-05-18
CVE-2026-7304	⛔ critical	9.8	0.4	SGLangs multimodal generation runtime is vulnerable to unauthenticated remote code execution when the --enable-custom-lo...	2026-05-18
CVE-2026-3059	⛔ critical	9.8	2.0	SGLang's multimodal generation module is vulnerable to unauthenticated remote code execution through the ZMQ broker, whi...	2026-03-12
CVE-2026-3060	⛔ critical	9.8	2.0	SGLang' encoder parallel disaggregation system is vulnerable to unauthenticated remote code execution through the disagg...	2026-03-12
CVE-2025-10164	⚠️ high	7.3	0.0	A security flaw has been discovered in lmsys sglang 0.4.6. Affected by this vulnerability is the function main of the fi...	2025-09-09

These CVEs affect the same products