{"action":"Upgrade litellm to 1.84.0 or later.","affected":[{"fixed":"1.84.0","introduced":"0"}],"component":"litellm","cve_ids":["CVE-2026-59822"],"ecosystem":"PyPI","epss":0.00836,"exploited":true,"fixed_versions":["1.84.0"],"ghsa_id":"GHSA-7488-6r32-c95q","id":"tcs_01M5KH5JEQSXC828T0BFWQSVR8","modified_at":"2026-07-23T15:00:13.909880217Z","published_at":"2026-07-23T11:41:48.668599Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3479","https://github.com/BerriAI/litellm/security/advisories/GHSA-7488-6r32-c95q","https://nvd.nist.gov/vuln/detail/CVE-2026-59822","https://github.com/BerriAI/litellm/pull/26463","https://github.com/BerriAI/litellm/commit/73869f0faf7d11ee21adcb5f91b8c33a340b6c2c","https://github.com/BerriAI/litellm","https://github.com/BerriAI/litellm/releases/tag/v1.84.0","https://pypi.org/project/litellm","https://github.com/advisories/GHSA-7488-6r32-c95q"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"PYSEC-2026-3479","url":"https://osv.dev/vulnerability/PYSEC-2026-3479"},{"source":"kev","source_id":"CVE-2026-59822","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"},{"source":"nvd","source_id":"CVE-2026-59822","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59822"}],"summary":"LiteLLM: MCP Authentication Bypass via OAuth2 Passthrough Fallback"}