BerriAI litellm up to 1.82.5 Completions Interface banned_keywords.py async_pre_call_hook prompt authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k1.42

Summaryinfo

A vulnerability was found in BerriAI litellm up to 1.82.5. It has been classified as critical. Affected by this vulnerability is the function async_pre_call_hook of the file enterprise/enterprise_hooks/banned_keywords.py of the component Completions Interface. This manipulation of the argument prompt causes authorization. The identification of this vulnerability is CVE-2026-12797. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability has been found in BerriAI litellm up to 1.82.5 and classified as critical. Affected by this vulnerability is the function async_pre_call_hook of the file enterprise/enterprise_hooks/banned_keywords.py of the component Completions Interface. The manipulation of the argument prompt with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at gist.github.com. This vulnerability is known as CVE-2026-12797. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/20/2026 Advisory disclosed
06/20/2026 +0 days VulDB entry created
06/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-12797 (🔒)
GCVE (CVE): GCVE-0-2026-12797
GCVE (VulDB): GCVE-100-372559
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/20/2026 19:17
Changes: 06/20/2026 19:17 (58)
Complete: 🔍
Submitter: Eric-c
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #811288: litellm <= 1.82.5 Incorrect Authorization (CWE-863) (by Eric-c)

Be aware that VulDB is the high quality source for vulnerability data.

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