{"action":"Upgrade litellm to 1.83.7 or later.","affected":[{"fixed":"1.83.7","introduced":"1.74.2"}],"component":"litellm","cve_ids":["CVE-2026-42271"],"ecosystem":"PyPI","epss":0.91445,"exploited":true,"fixed_versions":["1.83.7"],"ghsa_id":"GHSA-v4p8-mg3p-g94g","id":"tcs_01M5KH0E13EE0EJTY69MJDN8BZ","modified_at":"2026-07-13T16:32:04.086728418Z","published_at":"2026-07-13T15:02:53.541330Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2599","https://github.com/BerriAI/litellm/security/advisories/GHSA-v4p8-mg3p-g94g","https://nvd.nist.gov/vuln/detail/CVE-2026-42271","https://github.com/BerriAI/litellm","https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42271","https://pypi.org/project/litellm","https://github.com/advisories/GHSA-v4p8-mg3p-g94g"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-2599","url":"https://osv.dev/vulnerability/PYSEC-2026-2599"},{"source":"kev","source_id":"CVE-2026-42271","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json"}],"summary":"LiteLLM: Authenticated command execution via MCP stdio test endpoints"}