CVE-2026-18816: Baserow · Improper Authentication
Affects BaserowSource CVE Database V5
Not known to be exploited · CVSS 2.3 Low · fixed in 2.3.3 : update Baserow when convenient.
Data as of 3 Nov 2026, 22:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.3.3
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:XExploitation evidence
Disclosed: evidence found.
CVE published 4 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Baserow | Affected
| Fixed in– |
PyPIbaserowpkg:pypi/baserowOther threats | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:baserow:baserow:*:*:*:*:*:*:*:*
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Baserow to version 2.3.3 or later, as this version contains the fix for the improper authentication vulnerability. No other specific mitigations are indicated.
Description
CVE-2026-18816 is an improper authentication vulnerability in Baserow affecting versions 2.3.0, 2.3.1, and 2.3.2. It involves the verify function in the two-factor authentication (2FA) verify endpoint. The vulnerability can be exploited remotely but requires high complexity and is difficult to exploit. The issue is resolved by upgrading to version 2.3.3.
References
- vuldb.com/vuln/385815 (opens in a new tab)
- vuldb.com/vuln/385815/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-18816 (opens in a new tab)
- vuldb.com/submit/857941 (opens in a new tab)
- github.com/baserow/baserow/issues/5743 (opens in a new tab)
- github.com/baserow/baserow/releases/tag/2.3.3 (opens in a new tab)
- github.com/baserow/baserow/ (opens in a new tab)