VULNERABILITY INTELLIGENCE

CVE-2020-26234

CVSS score4.8 MEDIUM
EPSS probability0.28%
CISA KEVNot currently listed
Published2020-12-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N

Description

Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.

Weakness classification

  • security-advisories@github.com: CWE-346
  • nvd@nist.gov: CWE-346

Primary references