HIGH CISA-KEV ACTIVELY EXPLOITED
CVE-2026-59822
BerriAI LiteLLM Improper Authentication Vulnerability
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.
Affected Products
- BerriAI: LiteLLM
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-59822
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
This high severity vulnerability was published on 2026-09-02 via CISA-KEV. ⚠ This vulnerability is in the CISA Known Exploited Vulnerabilities (KEV) catalog — it is being actively exploited in the wild. Affected: BerriAI: LiteLLM.
Risk Timeline
CVE Disclosed2026-09-02 · 0 days ago
CISA KEV — Actively ExploitedU.S. federal agencies required to patch · confirmed threat-actor activity
Remediation Resources
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