CVE-2026-59822
Registro da vulnerabilidade com dados oficiais do NIST NVD, CISA KEV e FIRST EPSS.
Descrição
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, LiteLLM's MCP Streamable HTTP endpoint allowed an unauthenticated attacker to use a fabricated Authorization header to trigger an OAuth2 passthrough fallback path that replaced failed LiteLLM key validation with an empty UserAPIKeyAuth() object, allowing requests to reach MCP tooling without a valid LiteLLM key. This issue is fixed in version 1.84.0.
- CVSS 3.x
- 8.2 HIGH
- Publicada
- 08/07/2026
- Atualizada
- 03/09/2026
- Status NVD
- Analyzed
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Fraqueza: CWE-287, CWE-306
Exploração
- No catálogo CISA KEV
- Sim, desde 02/09/2026
- Usada por ransomware
- Não confirmado
- Prazo CISA
- 16/09/2026
- EPSS (FIRST)
- 0.8%
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Referências
Links publicados no registro oficial
- https://github.com/BerriAI/litellm/commit/73869f0faf7d11ee21adcb5f91b8c33a340b6c2c
- https://github.com/BerriAI/litellm/pull/26463
- https://github.com/BerriAI/litellm/releases/tag/v1.84.0
- https://github.com/BerriAI/litellm/security/advisories/GHSA-7488-6r32-c95q
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-59822
- https://www.wiz.io/blog/ai-infrastructure-honeypot
Alguns navegadores bloqueiam sites oficiais abertos a partir da pré-visualização; copie o endereço para abrir em outra aba: https://nvd.nist.gov/vuln/detail/CVE-2026-59822