What is CVE-2026-9566?

CVE-2026-9566 is a medium-severity vulnerability in Teableio Teable, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-05-26.

How severe is CVE-2026-9566?

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

RCE in Teableio Teable

CVE-2026-9566

A vulnerability was identified in teableio teable up to 1.9.x. This impacts an unknown function of the file apps/nextjs-app/src/features/auth/pages/LoginPage.tsx of the component Sign-up. The manipulation of the argument redirect leads to cross site scripting. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. Upgrading to version release.2026-04-21T08-57-20Z.1513 will fix this issue. The affected component should be upgraded. The vendor confirms: "The default branch of teableio/teable is develop, and the reported login redirect issue has already been fixed there. The login redirect flow now validates the redirect parameter with isValidRedirectPath() before navigation, which blocks javascript:, data:, and cross-origin redirects."

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-05-26 · last modified 2026-07-23.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.005 (39.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Teableio Teable — versions 1.0, 1.1, 1.2

Weakness classification (CWE)

References

vuldb.com/vuln/365628 (technical-description, vdb-entry)
vuldb.com/vuln/365628/cti (signature, permissions-required)
vuldb.com/submit/815798 (third-party-advisory)
gist.github.com/TrebledJ/98575dc5aecb47433f02ff942e6aedf1 (exploit)
github.com/Teableio/Teable/pull/2827 (issue-tracking, patch)
github.com/teableio/teable/releases/tag/release.2026-04-21T08-57-20Z.1513 (patch)
github.com/Teableio/Teable/ (product)

Frequently asked questions

What is CVE-2026-9566?: CVE-2026-9566 is a medium-severity vulnerability in Teableio Teable, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-05-26.
How severe is CVE-2026-9566?: Medium severity. CVSS v3 base score is 4.3 out of 10.