OpenCATS up to 0.9.1a DataGrid Filter sql injection

Summaryinfo

A vulnerability was found in OpenCATS up to 0.9.1a. It has been rated as critical. This vulnerability affects unknown code of the component DataGrid Filter. The manipulation leads to sql injection. This vulnerability is referenced as CVE-2026-49490. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenCATS up to 0.9.1a. This issue affects an unknown function of the component DataGrid Filter. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenCATS from version 0.9.1a contains an SQL injection vulnerability in DataGrid filter handling that allows authenticated attackers to inject SQL through crafted filters targeting the non-filterable Tags column in the Candidates DataGrid. Attackers can bypass column filterable restrictions by manipulating filter requests to execute arbitrary SQL queries against the database.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-49490 since 05/31/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/31/2026). The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-33502). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• OpenCATS

Version

• 0.9.1a

Website

• Product: https://github.com/opencats/OpenCATS/

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

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