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TI-2026-74944 Aliases CVE-2026-111160

Unauthenticated denial of service in LightLLM via pd_kv_trans_params

Priority HIGH 77CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

LightLLM through 1.2.0 by ModelTC deserializes untrusted data (CWE-502) when a request to the /generate endpoint supplies the internal pd_kv_trans_params field. An unauthenticated remote attacker can send a single request that makes pickle.loads fail, which kills the inference thread so that later requests hang until restart. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

LightLLM through 1.2.0 contains a denial of service vulnerability that allows unauthenticated attackers to crash the inference worker by supplying the internal pd_kv_trans_params field to the /generate endpoint. Attackers can send a single request whose parameters cause pickle.loads to fail in InferSamplingParams, killing the inference thread while /health stays up and all later requests hang until restart.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ModelTCLightLLMup to 1.2.0—No fix listedCNA
  • LightLLM VendorModelTC Affected up to 1.2.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for LightLLM.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111160
  2. 2026-10-16 Priority changed: MEDIUM → LOW
  3. 2026-10-21 CISA SSVC decision points changed
  4. 2026-10-21 Priority changed: LOW → HIGH

References

Exploit 1

Other 4

  • TI-2026-65681 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Visual-Only RPyC Service CVSS 4.0CRITICAL 9.3
  • TI-2026-65562 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC Service CVSS 4.0CRITICAL 9.3
  • TI-2026-65561 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service CVSS 4.0CRITICAL 9.3
  • TI-2026-63189 LightLLM through 1.2.0 Missing Authentication in PD Master /pd_register WebSocket Endpoint CVSS 4.0CRITICAL 9.3
  • TI-2026-61785 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle Deserialization CVSS 4.0CRITICAL 9.3
  • TI-2026-21211 LightLLM <= 1.1.0 PD Mode Unsafe Deserialization RCE CVSS 4.0CRITICAL 9.3
See all 11 →

Sources

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