{"id":"GHSA-g5ff-637f-6q2m","aliases":[],"url":"https://o3.security/vulnerability/GHSA-g5ff-637f-6q2m","summary":"LiteLLM: internal_user_viewer arbitrary local file read via `vertex_ai_credentials`","details":"## Summary\n\nAn authenticated LiteLLM proxy user could read arbitrary local files from the proxy runtime by sending a crafted `vertex_ai_credentials` value to `/utils/transform_request`. The request-body safety blocklist rejected `vertex_credentials` but missed its alias `vertex_ai_credentials`, which let the value reach the Vertex AI credential loader and trigger a file read that is sent to an attacker-controlled URL.\n\n## Impact\n\nA low-privilege authenticated user (only `internal_user_viewer`, obtainable through SSO login on many deployments) could read any file readable by the LiteLLM process. Reading files such as `/proc/self/environ` can disclose `LITELLM_MASTER_KEY` and provider API keys, so the impact can escalate to full proxy-admin control.\n\n## Remediation\n\nUpgrade to `1.95.0` or later. The fix adds the missing alias to the request-body blocklist, so no configuration change is needed once you upgrade. There is no reliable configuration workaround on affected versions.","published":"2026-10-27T15:32:36Z","modified":"2026-10-27T15:47:24.299145356Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"litellm","fixedVersion":"1.95.0"}],"fix":{"url":"https://github.com/BerriAI/litellm/pull/34189","label":"BerriAI/litellm#34189"},"references":[{"type":"WEB","url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-g5ff-637f-6q2m"},{"type":"WEB","url":"https://github.com/BerriAI/litellm/pull/34189"},{"type":"WEB","url":"https://github.com/BerriAI/litellm/commit/065faf6e695be64a1a367601271839914e4a6621"},{"type":"PACKAGE","url":"https://github.com/BerriAI/litellm"},{"type":"WEB","url":"https://github.com/BerriAI/litellm/releases/tag/v1.95.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-27T15:47:24.299145356Z"}}