CVE-2026-12771
BerriAI litellm M2M JWT user_api_key_auth.py improper authorization
- State
- Published
- Severity
- 2.3 Low
- Published
- Jun 21, 2026
- Updated
- Jun 22, 2026
- Reserved
- Jun 20, 2026
Description
A vulnerability was identified in BerriAI litellm up to 1.82.2. This affects an unknown function of the file litellm/proxy/auth/user_api_key_auth.py of the component M2M JWT Handler. Such manipulation leads to improper authorization. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is reported as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.0 Medium | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.6 Medium | AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
litellmBerriAI |
|
References
- VDB-372513 | BerriAI litellm M2M JWT user_api_key_auth.py improper authorizationvdb-entry
- VDB-372513 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-12771 | CVE Analysis and Reportthird-party-advisory
- Submit #811280 | litellm <= 1.82.2 Improper Authorization (CWE-285)third-party-advisory
- https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248dexploit
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