CVE-2025-30157
Envoy crashes when HTTP ext_proc processes local replies
6.5
MEDIUM
CVSS 3.1
EPSS 0.04%
Description
Envoy is a cloud-native high-performance edge/middle/service proxy. Prior to 1.33.1, 1.32.4, 1.31.6, and 1.30.10, Envoy's ext_proc HTTP filter is at risk of crashing if a local reply is sent to the external server due to the filter's life time issue. A known situation is the failure of a websocket handshake will trigger a local reply leading to the crash of Envoy. This vulnerability is fixed in 1.33.1, 1.32.4, 1.31.6, and 1.30.10.
How to fix CVE-2025-30157
To remediate CVE-2025-30157, upgrade the affected package to a fixed version below.
- —upgrade to 1.30.10 or later
- —upgrade to 1.30.10 or later
Is CVE-2025-30157 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.30.10, >= 1.31.0, < 1.31.6, >= 1.32.0, < 1.32.4, >= 1.33.0, < 1.33.1
- from 0, < 1.30.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |