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TI-2026-05050 Aliases CVE-2026-5760GHSA-2wm4-697g-pfq8

Code injection in SGLang

Priority HIGH 82CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

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().

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00852 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SGLangSGLang8f3097e—No fix listedCNA
  • SGLang VendorSGLang Affected 8f3097e Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*before 0.5.11VulnerableSGLang
  • cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:* Versions before 0.5.11 Vulnerable ·SGLang

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5760
  2. 2026-10-03 Alias added: GHSA-2wm4-697g-pfq8

References

Exploit 1

Patch 1

Advisory 1

  • TI-2026-13378 Deserialization of untrusted data in SGLang CVSS 3.1CRITICAL 9.8
  • TI-2026-13373 SGLang contains an RCE vulnerability when the optional dumper subsystem is enabled… CVSS 3.1CRITICAL 9.8
  • TI-2026-02644 Deserialization of untrusted data in SGLang CVSS 3.1CRITICAL 9.8
  • TI-2026-02643 Deserialization of untrusted data in SGLang CVSS 3.1CRITICAL 9.8
  • TI-2026-13380 Missing authentication in SGLang CVSS 3.1HIGH 7.5
  • TI-2026-13379 Insufficiently protected credentials in SGLang CVSS 3.1HIGH 7.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences