Auth bypass in Baserow
CVE-2026-18816
A vulnerability was identified in Baserow up to 2.3.2. Affected by this vulnerability is the function verify of the file backend/src/baserow/api/two_factor_auth/views.py of the component 2FA Verify Endpoint. Such manipulation leads to improper authentication. The attack may be launched remotely. This attack is characterized by high complexity. The exploitation appears to be difficult. Upgrading to version 2.3.3 addresses this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (37.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Baserow — versions 2.3.0, 2.3.1, 2.3.2
Weakness classification (CWE)
References
- github.com/baserow/baserow/ (product)
- github.com/baserow/baserow/issues/5743 (issue-tracking)
- github.com/baserow/baserow/releases/tag/2.3.3 (patch)
- vuldb.com/cve/CVE-2026-18816 (third-party-advisory)
- vuldb.com/submit/857941 (third-party-advisory)
- vuldb.com/vuln/385815 (technical-description, vdb-entry)
- vuldb.com/vuln/385815/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-18816?
- CVE-2026-18816 is a medium-severity vulnerability in Baserow, classified under Improper Authentication. CVSS score: 5.0/10. Published 2026-08-04.
- How severe is CVE-2026-18816?
- Medium severity. CVSS v3 base score is 5.0 out of 10.