Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Hoverfly versions before 1.12.8 are vulnerable to a denial of service. Remote post-serve actions are sent with no timeout, so each triggered proxy request can leave a goroutine blocked forever when the remote endpoint never responds. An attacker with access to the admin API, which is unauthenticated by default, can register such an action and send proxy traffic to exhaust memory and crash the process. Upgrade to Hoverfly 1.12.8 or later.
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 |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0054, the 46th percentile, on 15 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