Quick answers
- Is CVE-2026-116680 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116680 being exploited in the wild.
- How severe is CVE-2026-116680?
- Medium severity, with a CVSS score of 6.4, published 27 October 2026.
- Which products and versions are affected?
- Sysadminsmedia HomeBox prior to 0.27.0.
- Is there a fix for CVE-2026-116680?
- Yes: fixed in 0.27.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-116680 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-116680?
- Check whether you run Sysadminsmedia HomeBox at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 0.27.0
Technical details
The vulnerability is an SSRF bypass in notifier URL handling caused by inadequate redirect validation. HomeBox validates notifier URLs before creation and updates, but the underlying shoutrrr library sends requests via http.DefaultClient.Do without re-validating Location headers on each redirect hop. An authenticated collection member can configure a permitted notifier that redirects to loopback, link-local, or cloud metadata endpoints, bypassing the SSRF policy. The flaw is reachable via POST /api/v1/notifiers/test for immediate exploitation and through stored notifiers during scheduled delivery.
Affected products
- sysadminsmedia HomeBox prior to 0.27.0
Timeline
- 2026-10-27: disclosed