BIT-envoy-2025-62409

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/envoy/BIT-envoy-2025-62409.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-envoy-2025-62409
Aliases
Published
2025-10-21T08:41:16Z
Modified
2026-09-10T16:01:31Z
Summary
Envoy allows large requests and responses to cause TCP connection pool crash
Details

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.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
}
References

Affected packages

Bitnami / envoy

Package

Name
envoy
Purl
pkg:bitnami/envoy

Severity

  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.33.10
Introduced
1.34.0
Fixed
1.34.9
Introduced
1.35.0
Fixed
1.35.5
Introduced
1.36.0
Fixed
1.36.1

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/envoy/BIT-envoy-2025-62409.json"