1Panel-dev MaxKB up to 2.10.3-lts ModelParams ModelSerializer.ModelParams model_id improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in 1Panel-dev MaxKB up to 2.10.3-lts. Affected is the function ModelSerializer.ModelParams of the component ModelParams. The manipulation of the argument model_id results in improper authorization. This vulnerability is cataloged as CVE-2026-77523. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in 1Panel-dev MaxKB up to 2.10.3-lts. It has been classified as critical. Affected is the function ModelSerializer.ModelParams of the component ModelParams. The manipulation of the argument model_id with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

MaxKB is an open-source AI assistant for enterprise. In version 2.10.3-lts and earlier, the model parameter form route authorizes the path workspace but ModelSerializer.ModelParams loads and saves a Model by id alone without including workspace_id in the query. An authenticated user with model read permission in an attacker-controlled workspace can supply a known victim model_id to read or overwrite the victim's model_params_form in another workspace, potentially altering workflows that use those defaults. No fixed version is available as of this review.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-77523 since 08/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/21/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• 1Panel-dev

Name

• MaxKB

Version

• 2.10.3-lts

Website

• Product: https://github.com/1Panel-dev/MaxKB/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion