CVE-2026-18816 Baserow CVE debrief

Who should care

Users of Baserow up to version 2.3.2, particularly those responsible for vulnerability management, security teams, and operators of affected deployments, should be aware of this vulnerability and take action to upgrade to version 2.3.3. This vulnerability has a low CVSS score of 2.3, but its impact on authentication mechanisms makes it significant for affected users. Security teams should review the official advisory and monitor for potential exploitation attempts. IT operators should verify their deployments and plan for updates through normal change control processes. Vulnerability management teams should track exceptions and retest remediated assets to ensure thorough mitigation. Additionally, defenders should consider compensating controls and review relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory management is crucial to identify potentially affected systems. Rollback and change window planning may also be necessary for smooth remediation.

Technical summary

The vulnerability identified in Baserow up to 2.3.2 affects the function verify of the file backend/src/baserow/api/two_factor_auth/views.py of the component 2FA Verify Endpoint, leading to improper authentication. The attack may be launched remotely with high complexity. Upgrading to version 2.3.3 addresses this issue. The vendor responded professionally and quickly released a fixed version of the affected product. This vulnerability has a low CVSS score of 2.3, but its impact on authentication mechanisms makes it significant for affected users.

Defensive priority

Upgrade to version 2.3.3 to address the improper authentication vulnerability in the 2FA Verify Endpoint of Baserow up to 2.3.2.

Recommended defensive actions

• Upgrade to version 2.3.3
• Verify the affected component inventory
• Monitor for remote exploitation attempts
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The vulnerability was identified in Baserow up to 2.3.2, affecting the function verify of the file backend/src/baserow/api/two_factor_auth/views.py of the component 2FA Verify Endpoint, leading to improper authentication. The attack may be launched remotely with high complexity. Evidence is limited to public sources and vendor statements. Defenders should verify affected product deployments, review official advisories, and monitor for remote exploitation attempts.

Official resources