CVE-2024-53271

HighCVSS 7.1/10Last modified Jun 17, 2026

Description

Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions envoy does not properly handle http 1.1 non-101 1xx responses. This can lead to downstream failures in networked devices. This issue has been addressed in versions 1.31.5 and 1.32.3. Users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Weakness enumeration

CWE-670

Affected software

Vendor	Product	Versions
envoyproxy	envoy	>= 1.31.0, < 1.31.5; >= 1.32.0, < 1.32.3

References

https://github.com/envoyproxy/envoy/commit/da56f6da63079baecef9183436ee5f4141a59af8Patch
https://github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4fExploit, Third Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-rmm5-h2wv-mg4fExploit, Third Party Advisory

Timeline

Published: Dec 18, 2024
Last modified: Jun 17, 2026
NVD status: Analyzed

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