{"id":"CVE-2026-93355","title":"LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentic…","summary":"LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentic…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-1390","CWE-290"],"vendor":"BerriAI","product":"litellm","affected":["litellm <= 1.102.1","litellm <= f4308bc124eebc783dfc51790ce8db27ed21ae00"],"published":"2026-09-28","updated":"2026-09-30","sourceUpdated":"2026-09-30T17:23:08.953","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93355","references":[{"url":"https://www.ox.security/blog/litellm-an-ordinary-login-token-can-become-someone-elses-admin-account/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/litellm-weak-jwt-authentication-via-email-based-user-lookup","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93355.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93355"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542631"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93355"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93355"},{"url":"https://access.redhat.com/errata/RHSA-2026:84734"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00273,"epssPercentile":0.19602,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-29T14:01:26.547066Z"},"ingestedAt":"2026-09-28T20:20:05.661Z","exploits":{"github":1,"githubRepos":["https://github.com/InertFluid/cve-2026-93355-lab"],"checkedAt":"2026-10-27T19:23:18.900Z"},"patched":["openshift_ai 3.4"],"slug":"CVE-2026-93355","body":"## Overview\n\nLiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured identity provider to authenticate as any existing user by exploiting an email-based fallback lookup in the JWT authentication flow without verifying the email_verified claim. Attackers can present a token with an unverified email address matching a victim's account to inherit the victim's role, including proxy_admin privileges, and permanently overwrite the victim's stored identity binding to retain persistent unauthorized access to administrative endpoints exposing API keys and user management.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Exploit Intelligence, Lightspeed Core, Red Hat Ansible Automation Platform 2, Red Hat OpenShift AI (RHOAI) · no fix planned: Exploit Intelligence, Lightspeed Core, Red Hat Ansible Automation Platform 2, Red Hat OpenShift AI (RHOAI) · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93355.json)\n- **RHSA-2026:84734** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84734)","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":212746,"id":"CVE-2026-93355","ts":1790700030577,"field":"exploit_available","old":"false","new":"true"},{"seq":212726,"id":"CVE-2026-93355","ts":1790697324568,"field":"exploit_available","old":"true","new":"false"},{"seq":212714,"id":"CVE-2026-93355","ts":1790692650671,"field":"exploit_available","old":"false","new":"true"}]}