Detections
Analytics

Echo: litellm: security update to 1.84.0

high Tenable Cloud Security Plugin ID 457424

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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
 Authorization header to trigger an OAuth2 passthrough fallback path that replaced failed LiteLLM key
 validation with an empty UserAPIKeyAuth() object, allowing requests to reach MCP tooling without a valid
 LiteLLM key. This issue is fixed in version 1.84.0. (CVE-2026-59822)

Solution

Update the litellm library and its related packages to version 1.84.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-59822

Plugin Details

Severity: High

ID: 457424

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: High

Score: 7.8

Percentile: 99.32

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

CVSS Score Source: CVE-2026-59822

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 8.8

Threat Vector: CVSS:4.0/E:A

Vector: 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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/24/2026

Vulnerability Publication Date: 7/8/2026

CISA Known Exploited Vulnerability Due Dates: 9/16/2026

Reference Information

CVE: CVE-2026-59822