CVE-2026-77523 MaxKB - Broken Access Control

MaxKB <= 2.10.3-lts contains a broken access control caused by ModelSerializer.ModelParams loading and saving models by id without workspace_id, letting authenticated users with model read permission in attacker-controlled workspace read or overwrite models in other workspaces, exploit requires authenticated user with model read permission.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Published
21 September 2026
Updated
15 October 2026
Weakness
CWE-639

Vendor fix

Update to the latest version once a fix is available.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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