What is CVE-2026-3266?

CVE-2026-3266 is a critical-severity vulnerability in Opentext Filr, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-03-03.

How severe is CVE-2026-3266?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Opentext Filr

CVE-2026-3266

Missing Authorization vulnerability in OpenText™ Filr allows Authentication Bypass. The vulnerability could allow unauthenticated users to get XSRF token and do RPC with carefully crafted programs. This issue affects Filr: through 25.1.2.

Vulnerability class: Broken Access Control

Published 2026-03-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% 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

Opentext Filr
Opentext™ Filr — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

portal.microfocus.com/s/article/KM000045579 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-3266?: CVE-2026-3266 is a critical-severity vulnerability in Opentext Filr, classified under Missing Authorization. CVSS score: 9.8/10. Published 2026-03-03.
How severe is CVE-2026-3266?: Critical severity. CVSS v3 base score is 9.8 out of 10.