HIGHVulnerability
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NVD HIGH: CVE-2026-89032 — BerriAI LiteLLM before 1.101.0-rc.1 contains a tenant isolation bypass vulnerabi...

·Source: NIST NVD

Updated:

Executive Summary

BerriAI LiteLLM before 1.101.0-rc.1 contains a tenant isolation bypass vulnerability in the semantic cache layer that allows authenticated users to read other tenants' cached responses by exploiting a metadata key mismatch between _get_semantic_cache_tenant_scope() and _get_metadata_variable_name(). Attackers holding a valid virtual key can submit semantically similar prompts on affected routes su

Analysis

BerriAI LiteLLM before 1.101.0-rc.1 contains a tenant isolation bypass vulnerability in the semantic cache layer that allows authenticated users to read other tenants' cached responses by exploiting a metadata key mismatch between _get_semantic_cache_tenant_scope() and _get_metadata_variable_name(). Attackers holding a valid virtual key can submit semantically similar prompts on affected routes such as /v1/responses and /bedrock/* to retrieve cached responses containing other tenants' personally identifiable information, financial data, or source code, and can cause agentic front-ends to auto-execute attacker-supplied tool calls under victim credentials by returning cached function_call or tool_calls payloads to a different principal. CVSS Score: 7.7. Published: 2026-09-25T17:17:18.793.

Indicators of Compromise (1)

CVE (1)
CVE-2026-89032
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 25, 2026. Verified by: NIST.

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