What is CVE-2026-34213?

CVE-2026-34213 is a medium-severity vulnerability in Docmost, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-04-14.

How severe is CVE-2026-34213?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Docmost

CVE-2026-34213

Docmost is open-source collaborative wiki and documentation software. Starting in version 0.3.0 and prior to version 0.71.0, improper authorization in Docmost allows a low-privileged authenticated user to overwrite another page's attachmen…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (15.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Docmost — versions >= 0.3.0, < 0.71.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/docmost/docmost/security/advisories/GHSA-89fp-2hch-j9gp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34213?: CVE-2026-34213 is a medium-severity vulnerability in Docmost, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-04-14.
How severe is CVE-2026-34213?: Medium severity. CVSS v3 base score is 5.4 out of 10.