CVE-2026-18816Network attack vector

Authenticated 2FA identity misbinding via request-body email

Published Aug 4, 2026 · Updated Aug 4, 2026

Improper authentication in Baserow 2.3.0 through 2.3.2 allows remote authenticated users to misbind 2FA verification to another identity. The verify function in backend/src/baserow/api/two_factor_auth/views.py resolves the account from a request-body email instead of the identity carried by the partial-login token. Exploitation requires a valid 2FA-stage token and a chosen email, and public sources do not demonstrate account takeover or broader access.

CVSS severity2.3
Low
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Baserow 2.3.0 through 2.3.2 allows remote authenticated users to misbind 2FA verification to another identity. The verify function in backend/src/baserow/api/two_factor_auth/views.py resolves the account from a request-body email instead of the identity carried by the partial-login token. Exploitation requires a valid 2FA-stage token and a chosen email, and public sources do not demonstrate account takeover or broader access.

The record

CVE
CVE-2026-18816
Published
Aug 4, 2026
Updated
Aug 4, 2026
Vendor
Baserow
Product
Baserow
Classifications
CWE-287, T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.3.0
  2. Affected versionversion=2.3.1
  3. Affected versionversion=2.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Baserow · Baserowversion=2.3.0; version=2.3.1; version=2.3.2

Published CVSS scores

2.3VulDB CNACVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1550.001Use Alternate Authentication Material: Application Access Token

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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