CVE-2026-5760

CRITICALNVD 9.89.8—Elevated

9.8

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 v3: 9.8
EG Score: 9.8(high)
EPSS: 57.9%
KEV: Not listed

Published

April 20, 2026

Last Modified

April 29, 2026

Advisory Details (3)

Auto-updated May 10, 2026

🔬 Proof of concept available. No patch confirmed yet. Sources: cert.

cert

VU#915947 - SGLang is vulnerable to remote code execution when rendering chat templates from a model file

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

generic

Fix for CVE-2026-5760 by ccullen-cert · Pull Request #23660 · sgl-project/sglang · GitHub

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

generic🟡 PoC Available

GitHub - Stuub/SGLang-0.5.9-RCE: Proof of Concept exploitation of CVE-2026-5760 - RCE in SGLang 0.5.9 via malicious GGUF · GitHub

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-21 22:43 UTCepss_batch
2026-05-20 11:22 UTCepss_batch
2026-05-20 10:24 UTCEG score recompute
2026-05-20 10:24 UTCGHSA enrichment
2026-05-20 06:13 UTCEG score recompute
2026-05-20 06:13 UTCGHSA enrichment
2026-05-20 02:05 UTCEG score recompute
2026-05-20 02:05 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-5760?

CVE-2026-5760 is a critical vulnerability published on April 20, 2026. 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().

When was CVE-2026-5760 disclosed?

CVE-2026-5760 was first published in the National Vulnerability Database on April 20, 2026, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-5760 actively exploited?

CVE-2026-5760 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-5760?

CVE-2026-5760 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2026-5760?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5760, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-5760

📅 Published

🔄 Last Modified

📋 Advisory Details (3)