CVE-2026-12771: Improper Authorization in BerriAI litellm
CVE-2026-12771 is an improper authorization vulnerability in BerriAI litellm affecting versions 1.82.0, 1.82.1, and 1.82.2. It involves a flaw in the M2M JWT Handler component, specifically in the file litellm/proxy/auth/user_api_key_auth.py. The vulnerability can be exploited remotely but requires high attack complexity and is difficult to exploit. No official patch or remediation is currently confirmed by the vendor. The CVSS 4.0 score rates this issue as low severity.
AI Analysis
Technical Summary
This vulnerability in BerriAI litellm up to version 1.82.2 allows improper authorization due to a flaw in the M2M JWT Handler's user API key authentication mechanism. The issue is located in the file litellm/proxy/auth/user_api_key_auth.py. An attacker with low privileges could potentially exploit this remotely, but the attack complexity is high and exploitability is difficult. Although an exploit is publicly available, there is no vendor-provided patch or official remediation guidance at this time.
Potential Impact
The vulnerability could allow an attacker to bypass proper authorization controls remotely, potentially gaining unauthorized access or actions within the affected component. However, the low CVSS score and high complexity indicate limited impact and difficulty in exploitation. There are no confirmed exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No specific temporary mitigations are documented.
CVE-2026-12771: Improper Authorization in BerriAI litellm
Description
CVE-2026-12771 is an improper authorization vulnerability in BerriAI litellm affecting versions 1.82.0, 1.82.1, and 1.82.2. It involves a flaw in the M2M JWT Handler component, specifically in the file litellm/proxy/auth/user_api_key_auth.py. The vulnerability can be exploited remotely but requires high attack complexity and is difficult to exploit. No official patch or remediation is currently confirmed by the vendor. The CVSS 4.0 score rates this issue as low severity.
CVSS v4.0
Score 2.3low
Affected software
cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in BerriAI litellm up to version 1.82.2 allows improper authorization due to a flaw in the M2M JWT Handler's user API key authentication mechanism. The issue is located in the file litellm/proxy/auth/user_api_key_auth.py. An attacker with low privileges could potentially exploit this remotely, but the attack complexity is high and exploitability is difficult. Although an exploit is publicly available, there is no vendor-provided patch or official remediation guidance at this time.
Potential Impact
The vulnerability could allow an attacker to bypass proper authorization controls remotely, potentially gaining unauthorized access or actions within the affected component. However, the low CVSS score and high complexity indicate limited impact and difficulty in exploitation. There are no confirmed exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor vendor communications for updates. No specific temporary mitigations are documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-20T09:26:20.566Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3743f19c760d8add41b4f8
Added to database: 06/21/2026, 01:52:49 UTC
Last enriched: 06/21/2026, 02:07:42 UTC
Last updated: 06/21/2026, 03:57:12 UTC
Views: 9
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