CVE-2026-41453 krayin CVE debrief

Who should care

Defenders of Krayin CRM instances, particularly those with authentication and lead management systems, should assess exposure and prioritize patching or mitigating the vulnerability. Security teams responsible for monitoring and incident response should also be aware of potential exploitation attempts.

Why it matters

CVE-2026-41453 is a high-severity blind SQL injection vulnerability in Krayin CRM that allows authenticated users to inject arbitrary SQL and extract sensitive data. Defenders should prioritize patching or mitigating this vulnerability to prevent potential data breaches and service disruptions.

• Potential data breaches due to unauthorized database access
• Risk of user credential compromise
• Possible disruption of CRM services
• Need for verification of current CRM version and exposure

Technical summary

The Krayin CRM before version 2.2.4 contains a blind SQL injection vulnerability in the leads DataGrid. Authenticated users with leads access can inject arbitrary SQL into a HAVING clause by manipulating the rotten_lead[in] query parameter. This allows attackers to extract the entire database contents, including user credential hashes, CRM records, and application configuration data, using time-based and boolean-based blind injection techniques.

Defensive priority

High priority for authentication and lead management system defenders

Recommended defensive actions

• Review and apply patches or updates for Krayin CRM to version 2.2.4 or later
• Restrict access to the leads DataGrid to only necessary personnel
• Monitor for suspicious SQL injection attempts
• Implement additional security measures such as parameterized queries or prepared statements
• Conduct a thorough review of current CRM version and exposure
• Verify the integrity of user credential hashes and CRM records
• Track and analyze potential exploitation attempts and anomalies in CRM services

Evidence notes

The CVE record and NVD entry provide details on the blind SQL injection vulnerability in Krayin CRM before version 2.2.4. The vulnerability allows authenticated users with leads access to inject arbitrary SQL into a HAVING clause. The NVD entry is currently Deferred.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.