CVE-2026-33266

EUVD-2026-20936

09.04.2026, 16:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
apache	CNA	UNKNOWN				---

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
apache	openmeetings	6.1.0 ≤ 𝑥 < 9.0.0	CNA

Common Weakness Enumeration

CWE-321 - Use of Hard-coded Cryptographic Key
The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered.

References

https://lists.apache.org/thread/b05jnp9563v49zq494lox9kjbhhf2w66

http://www.openwall.com/lists/oss-security/2026/04/09/11