What’s Vulnerable › Vulnerabilities

CVE-2026-33266: Apache OpenMeetings: Hardcoded Remember-Me Cookie Encryption Key and Salt

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-10-26
• Weakness: CWE-321

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.

Affected products

• Apache Software Foundation Apache OpenMeetings: from 6.1.0 before 9.0.0 — fixed in 9.0.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache OpenMeetings 9.0.0. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/b05jnp9563v49zq494lox9kjbhhf2w66
• http://www.openwall.com/lists/oss-security/2026/04/09/11

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