Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
New API versions before 0.12.0-alpha.1 are vulnerable to a server-side request forgery bypass. A regular authenticated user can set notification URLs for Webhook, Bark, or Gotify so that a hostname resolves to an internal or metadata IP address, causing the server to send requests to internal HTTP services. Upgrade to 0.12.0-alpha.1 or later. If upgrading is not possible, enable ApplyIPFilterForDomain, restrict notification domains with an allowlist, and apply outbound network filtering.
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 |
|---|---|---|---|---|
| 7.7 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0044, the 38th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:59 UTC First seen by agentprime
- 31 Oct 2026, 14:59 UTC Confirmed by OSV