CVE-2026-33266

EUVD-2026-20936
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
Affected Products (NVD)
VendorProductVersion
apacheopenmeetings
6.1.0 ≤
𝑥
< 9.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://lists.apache.org/thread/b05jnp9563v49zq494lox9kjbhhf2w66
http://www.openwall.com/lists/oss-security/2026/04/09/11