What is CVE-2026-33266?

CVE-2026-33266 is a high-severity vulnerability in Apache Openmeetings, classified under Use of Hard-coded Cryptographic Key. CVSS score: 7.5/10. Published 2026-04-09.

How severe is CVE-2026-33266?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Apache Openmeetings

CVE-2026-33266

Use of Hard-coded Cryptographic Key vulnerability in Apache OpenMeetings. The remember-me cookie encryption key is set to default value in openmeetings.properties and not being auto-rotated. In case OM admin hasn't changed the default enc…

EPSS: 0.002 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apache Openmeetings
Apache Software Foundation Openmeetings — versions 6.1.0

Weakness classification (CWE)

CWE-321 — Use of Hard-coded Cryptographic Key

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-33266?: CVE-2026-33266 is a high-severity vulnerability in Apache Openmeetings, classified under Use of Hard-coded Cryptographic Key. CVSS score: 7.5/10. Published 2026-04-09.
How severe is CVE-2026-33266?: High severity. CVSS v3 base score is 7.5 out of 10.