CVE-2026-33266 json
Apache OpenMeetings: Hardcoded Remember-Me Cookie Encryption Key and Salt
published 2026-04-09 7 mo ago modified 2026-10-26 13 d ago also EUVD-2026-20936 , GHSA-wqxq-w68r-wg85
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.openmeetings:openmeetings-parent 9.0.0
- Apache Software Foundation Apache OpenMeetings 9.0.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.openmeetings:openmeetings-parent | >=6.1.0, <9.0.0 |
9.0.0 |
Affected products
- Apache Software Foundation Apache OpenMeetings
Classification
- Weakness
-
- CWE-321 Use of Hard-coded Cryptographic Key
References
-
lists.apache.org
/thread/b05jnp9563v49zq494lox9kjbhhf2w66
vendor-advisory, web, mailing-list
-
openwall.com
/lists/oss-security/2026/04/09/11
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-33266
advisory
-
github.com
/apache/openmeetings
package
Sources
- CVE List CVE-2026-33266
- GitHub Advisory GHSA-wqxq-w68r-wg85
- NVD CVE-2026-33266
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.