Description

Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will happen when the connection is closing but upstream data is still coming, resulting in a buffer watermark callback nullptr reference. The vulnerability impacts TCP proxy and HTTP 1 & 2 mixed use cases based on ALPN. This vulnerability is fixed in 1.36.1, 1.35.5, 1.34.9, and 1.33.10.

INFO

Published Date :

2025-10-16T17:47:25.585Z

Last Modified :

2025-10-16T19:22:45.332Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-62409 vulnerability.

Vendors Products
Envoyproxy
  • Envoy
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-62409.

URL Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-pq33-4jxh-hgm3 cve-icon cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-62409 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-62409 cve-icon
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CVSS Vulnerability Scoring System

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