Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Opencast versions before 7.9 and from 8.0 before 8.9 disable HTTPS hostname verification in the HTTP client used for much of Opencast's outbound HTTP traffic. An attacker in a position to intercept network traffic could perform a man-in-the-middle attack. Upgrade to Opencast 7.9 or 8.9. After upgrading, self-signed certificates must be imported into the Java key store, since they are no longer accepted without import.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 4.8 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0028, the 20th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:19 UTC First seen by agentprime
- 31 Oct 2026, 14:19 UTC Confirmed by OSV