CVE catalog
CVE-2026-59822
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, LiteLLM's MCP Streamable HTTP endpoint allowed an unauthenticated attacker to use a fabricated Au
- Severity
- High · CVSS 8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- Exploitation
- CISA Known Exploited Vulnerabilities
- EPSS
- 0.84% · Oct 25, 2026
BerriAI LiteLLM contains an improper authentication vulnerability in the MCP Streamable HTTP endpoint that could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Pip | litellm | Not reported | 1.84.0 | fixed |
| PyPI | litellm | Not reported | 1.84.0 | fixed |
| Cpe | litellm | Not reported | 1.84.0 | fixed |
| PyPI | litellm | Not reported | 1.84.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Pip | litellm | pip | Not reported | 1.84.0 | Not reported | Not reported | Not reported |
| PyPI | litellm | PyPI | Not reported | 1.84.0 | Not reported | PYSEC-2026-3479 | Not reported |
| Cpe | litellm | cpe | Not reported | 1.84.0 | Not reported | NVD-CVE-2026-59822 | Not reported |
| PyPI | litellm | PyPI | Not reported | 1.84.0 | Not reported | GHSA-7488-6R32-C95Q | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/BerriAI/litellm/commit/73869f0faf7d11ee21adcb5f91b8c33a340b6c2c]
- [https://github.com/BerriAI/litellm/pull/26463]
- [https://github.com/BerriAI/litellm/releases/tag/v1.84.0]
- [https://github.com/BerriAI/litellm/security/advisories/GHSA-7488-6r32-c95q]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59822]
- [https://osv.dev/vulnerability/GHSA-7488-6r32-c95q]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59822.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2263.json]
- [https://www.cisa.gov/known-exploited-vulnerabilities-catalog]
- [https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-59822]
- [https://www.wiz.io/blog/ai-infrastructure-honeypot]
[CERT-Bund public advisories] · [CISA Known Exploited Vulnerabilities (OSINT)] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]