7.5 High

CVE-2024-34363 Envoy can crash due to uncaught nlohmann JSON exception

Description

Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Network
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
envoy 1.30	1.30.0 → 1.30.1	No fix stated
envoy 1.29	1.29.0 → 1.29.4	No fix stated
envoy 1.28	1.28.0 → 1.28.3	No fix stated

References

github.com github.com

Timeline

Published June 4, 2024
Last modified November 5, 2026

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