🛡️ CVE-2026-33266 — openmeetings

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-321 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Apache OpenMeetings Uses Hard-coded Cryptographic Key

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Affected software

CVE-2026-33266 is recorded against 2 packages.

  • openmeetings (from 6.1.0 up to 9.0.0)
  • org.apache.openmeetings:openmeetings-parent (from 6.1.0 up to 9.0.0)

Timeline and source

Published on 9 April 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

lists.apache.org
www.openwall.com

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-321
Public Exploit ✅ No
Source NVD
Published 2026-04-09
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
openmeetings 6.1.0 9.0.0
org.apache.openmeetings:openmeetings-parent 6.1.0 9.0.0

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