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Vulnerability Details :

CVE-2026-12771

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-21 Jun, 2026 | 01:00
Updated At-22 Jun, 2026 | 13:33
Rejected At-
Credits

BerriAI litellm M2M JWT user_api_key_auth.py improper authorization

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:21 Jun, 2026 | 01:00
Updated At:22 Jun, 2026 | 13:33
Rejected At:
â–¼CVE Numbering Authority (CNA)
BerriAI litellm M2M JWT user_api_key_auth.py improper authorization

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.

Affected Products
Vendor
BerriAI
Product
litellm
CPEs
  • cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*
Modules
  • M2M JWT Handler
Versions
Affected
  • 1.82.0
  • 1.82.1
  • 1.82.2
Problem Types
TypeCWE IDDescription
CWECWE-285Improper Authorization
CWECWE-266Incorrect Privilege Assignment
Type: CWE
CWE ID: CWE-285
Description: Improper Authorization
Type: CWE
CWE ID: CWE-266
Description: Incorrect Privilege Assignment
Metrics
VersionBase scoreBase severityVector
4.02.3LOW
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
3.15.0MEDIUM
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
3.05.0MEDIUM
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
2.04.6N/A
AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 2.3
Base severity: LOW
Vector:
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
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
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
Version: 3.0
Base score: 5.0
Base severity: MEDIUM
Vector:
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
Version: 2.0
Base score: 4.6
Base severity: N/A
Vector:
AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Eric-c (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-06-20 00:00:00
VulDB entry created2026-06-20 02:00:00
VulDB entry last update2026-06-20 11:31:36
Event: Advisory disclosed
Date: 2026-06-20 00:00:00
Event: VulDB entry created
Date: 2026-06-20 02:00:00
Event: VulDB entry last update
Date: 2026-06-20 11:31:36
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/vuln/372513
vdb-entry
https://vuldb.com/vuln/372513/cti
signature
permissions-required
https://vuldb.com/cve/CVE-2026-12771
third-party-advisory
https://vuldb.com/submit/811280
third-party-advisory
https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248d
exploit
Hyperlink: https://vuldb.com/vuln/372513
Resource:
vdb-entry
Hyperlink: https://vuldb.com/vuln/372513/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/cve/CVE-2026-12771
Resource:
third-party-advisory
Hyperlink: https://vuldb.com/submit/811280
Resource:
third-party-advisory
Hyperlink: https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248d
Resource:
exploit
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@vuldb.com
Published At:21 Jun, 2026 | 02:16
Updated At:22 Jun, 2026 | 14:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.01.3LOW
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.15.0MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Secondary2.04.6MEDIUM
AV:N/AC:H/Au:S/C:P/I:P/A:P
N/A
Type: Secondary
Version: 4.0
Base score: 1.3
Base severity: LOW
Vector:
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 5.0
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Type: Secondary
Version: 2.0
Base score: 4.6
Base severity: MEDIUM
Vector:
AV:N/AC:H/Au:S/C:P/I:P/A:P
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-266Secondarycna@vuldb.com
CWE-285Secondarycna@vuldb.com
CWE ID: CWE-266
Type: Secondary
Source: cna@vuldb.com
CWE ID: CWE-285
Type: Secondary
Source: cna@vuldb.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248dcna@vuldb.com
N/A
https://vuldb.com/cve/CVE-2026-12771cna@vuldb.com
N/A
https://vuldb.com/submit/811280cna@vuldb.com
N/A
https://vuldb.com/vuln/372513cna@vuldb.com
N/A
https://vuldb.com/vuln/372513/cticna@vuldb.com
N/A
Hyperlink: https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248d
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/cve/CVE-2026-12771
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/submit/811280
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/vuln/372513
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/vuln/372513/cti
Source: cna@vuldb.com
Resource: N/A

Change History

0
Information is not available yet

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