What is CVE-2026-23623?

CVE-2026-23623 is a medium-severity vulnerability in Collaboraonline Online, classified under Improper Authorization. CVSS score: 5.3/10. Published 2026-02-05.

How severe is CVE-2026-23623?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Collaboraonline Online

CVE-2026-23623

Collabora Online is a collaborative online office suite based on LibreOffice technology. Prior to Collabora Online Development Edition version 25.04.08.2 and prior to Collabora Online versions 23.05.20.1, 24.04.17.3, and 25.04.7.5, a user…

EPSS: 0.000 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Collaboraonline Online — versions Collabora Online < 25.04.7.5, Collabora Online < 24.04.17.3, Collabora Online < 23.05.20.1

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

https://github.com/CollaboraOnline/online/security/advisories/GHSA-68v6-r6qq-mmq2 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-23623?: CVE-2026-23623 is a medium-severity vulnerability in Collaboraonline Online, classified under Improper Authorization. CVSS score: 5.3/10. Published 2026-02-05.
How severe is CVE-2026-23623?: Medium severity. CVSS v3 base score is 5.3 out of 10.