highclosedpatched
BerriAI LiteLLM: BerriAI LiteLLM Improper Authentication Vulnerability
› BerriAI LiteLLM
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- started
- Sep 2, 2026
- closed
- Sep 2, 2026
- CVEs
- 1
- sources
- 3
## summary
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. Added to CISA KEV on 2026-09-02.
severity: Actively exploited (CISA KEV)
## cve ids[1]
## affected
- See vendor advisory / CISA notes (versions not always listed in KEV feed)
## fixed in
- See vendor advisory linked in sources
## timeline[1]
CISA added CVE-2026-59822 to the KEV catalog (due 2026-09-16).
## advisories[3]
## notes & caveats
Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).
