CVE-2025-30157 - CVE House
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Status published Medium CVE-2025-30157

Envoy crashes when HTTP ext_proc processes local replies

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

envoy
Vulnerable Versions:
>= 1.33.0, < 1.33.1, >= 1.32.0, < 1.32.4, >= 1.31.0, < 1.31.6, < 1.30.10

Timeline

Official Publish: March 21st, 2025
Last Modified: March 21st, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-460

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.