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CVE-2025-30157GHSA-CF3Q-GQG7-3FM9BIT-ENVOY-2025-30157

Envoy crashes when HTTP ext_proc processes local replies

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.33.1, 1.32.4, 1.31.6, 1.30.10
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • envoyproxy envoy

    From 1.33.0 · fixed in 1.33.1; From 1.32.0 · fixed in 1.32.4; From 1.31.0 · fixed in 1.31.6; fixed in 1.30.10

  • github.com/envoyproxy/envoyGo

    fixed in 1.30.10

  • github.com/envoyproxy/envoyGo

    From 1.31.0 · fixed in 1.31.6

  • github.com/envoyproxy/envoyGo

    From 1.32.0 · fixed in 1.32.4

  • github.com/envoyproxy/envoyGo

    From 1.33.0 · fixed in 1.33.1

References 2

GitHub · envoyproxy/envoy