CVE-2026-33266
High
Description
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 encryption key, an attacker who has stolen a cookie from a logged-in user can get full user credentials. This issue affects Apache OpenMeetings: from 6.1.0 before 9.0.0. Users are recommended to upgrade to version 9.0.0, which fixes the issue.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Openmeetings
PublishedApr 9, 2026
First seenApr 9, 2026
Weakness typeCWE-321CWE-321
How to fix
Update
- apache openmeetings9.0.0 or later
- org.apache.openmeetings:openmeetings-parent9.0.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache openmeetings | 6.1.0 ≤ v < 9.0.0 | 9.0.0 |
| org.apache.openmeetings:openmeetings-parentMaven | 6.1.0 ≤ v < 9.0.0 | 9.0.0 |
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