CVE-2026-18816 json
Baserow 2FA Verify Endpoint views.py verify improper authentication
published 3mo ago modified 2mo ago also EUVD-2026-52976
- cvss
- 5.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2026-18816 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.3 | 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:X |
| CNA | 3.1 | 5.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C |
| CNA | 3.0 | 5.0 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C |
| CNA | 2.0 | 4.6 | AV:N/AC:H/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C |
| CNA | 4.0 | 2.3 | 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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| CNA | 3.1 | 5.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 4.6 | AV:N/AC:H/Au:S/C:P/I:P/A:P |
Affected products
- n/a Baserow
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/baserow/baserow/releases/tag/2.3.3
patch
-
vuldb.com
/vuln/385815
vdb-entry, technical-description
-
vuldb.com
/vuln/385815/cti
signature, permissions-required
-
vuldb.com
/cve/CVE-2026-18816
third-party-advisory
-
vuldb.com
/submit/857941
third-party-advisory
-
github.com
/baserow/baserow/issues/5743
issue-tracking
-
github.com
/baserow/baserow/
product
Sources
- CVE List CVE-2026-18816
- NVD CVE-2026-18816
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.