What is CVE-2026-113359?

CVE-2026-113359 is a medium-severity vulnerability in Baserow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-20.

How severe is CVE-2026-113359?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Baserow

CVE-2026-113359

Baserow before 2.3.0 contains a missing authorization vulnerability that allows any authenticated user to read field values from other workspaces via the unique_row_values API endpoint. Attackers can enumerate sequential field IDs to retrieve up to 100 distinct cell values per field from tables in workspaces they do not belong to.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-20 · last modified 2026-10-20.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Baserow

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/baserow/baserow/issues/4870 (issue-tracking)
github.com/baserow/baserow/security/advisories/GHSA-r8cf-4rgr-x5cv (vendor-advisory)
github.com/baserow/baserow/commit/6884c1a49adb5eb0a32de1220e6d9f99e9d97c1f (patch)
github.com/baserow/baserow/releases/tag/2.3.0 (release-notes)
github.com/baserow/baserow/blob/2.2.2/backend/src/baserow/contrib/database/api/… (technical-description)
www.vulncheck.com/advisories/baserow-before-2.3.0-cross-workspace-data-disclosu… (third-party-advisory)

Frequently asked questions

What is CVE-2026-113359?: CVE-2026-113359 is a medium-severity vulnerability in Baserow, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-10-20.
How severe is CVE-2026-113359?: Medium severity. CVSS v3 base score is 4.3 out of 10.