CVE-2026-12773: falha de média gravidade em BerriAI litellm
BerriAI litellm MCP Proxy user_api_key_auth_mcp.py UserAPIKeyAuth improper authentication
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33Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendcvss 6.9epss 1.0%
A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm/proxy/_experimental/mcp_server/auth/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper authentication. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Produtos afetados
BerriAI · litellmPoCs públicas encontradas — 1
cve_referencegist.github.com/YLChen-007/3cfaad10a69d7a15e4d4d458cb53309enão verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
CVEs relacionadas — BerriAI litellm
No mesmo produto, das mais perigosas para as menos.
CVE-2026-42271HIGHLiteLLM: Authenticated command execution via MCP stdio test endpointsEPSS 91.4%KEVCVE-2026-42208CRITICALLiteLLM: SQL injection in Proxy API key verificationEPSS 89.4%KEVCVE-2026-59822HIGHLiteLLM: MCP Authentication Bypass via OAuth2 Passthrough FallbackEPSS 0.8%KEVCVE-2026-35029HIGHLiteLLM affected by privilege escalation via unrestricted proxy configuration endpointEPSS 38.6%CVE-2026-49468CRITICALLiteLLM: Authentication Bypass via Host Header InjectionEPSS 3.0%CVE-2026-47101HIGHLiteLLM < 1.83.14 Privilege Escalation via API Key GenerationEPSS 1.2%
Referências
https://access.redhat.com/security/cve/CVE-2026-12773https://bugzilla.redhat.com/show_bug.cgi?id=2491112https://gist.github.com/YLChen-007/3cfaad10a69d7a15e4d4d458cb53309ehttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12773.jsonhttps://vuldb.com/cve/CVE-2026-12773https://vuldb.com/submit/811282https://vuldb.com/vuln/372515https://vuldb.com/vuln/372515/cti