What’s Vulnerable › Vulnerabilities

CVE-2024-53269: Happy Eyeballs: Validate that additional_address are IP addresses instead of crashing when sorting in envoy

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-12-18 · updated 2026-06-17
• Weakness: CWE-670

Description

Envoy is a cloud-native high-performance edge/middle/service proxy. When additional address are not ip addresses, then the Happy Eyeballs sorting algorithm will crash in data plane. This issue has been addressed in releases 1.32.2, 1.31.4, and 1.30.8. Users are advised to upgrade. Users unable to upgrade may disable Happy Eyeballs and/or change the IP configuration.

Affected products

• envoyproxy envoy: from 1.30.0 before 1.30.8; from 1.31.0 before 1.31.4; from 1.32.0 before 1.32.2 — fixed in 1.30.8, 1.31.4, 1.32.2

How to fix

Upgrade to a fixed version: envoyproxy envoy 1.30.8, 1.31.4, 1.32.2. Check the vendor advisory for mitigations.

References

• https://github.com/envoyproxy/envoy/pull/37743/commits/3f62168d86aceb90f743f63b50cc711710b1c401
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-mfqp-7mmj-rm53
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-mfqp-7mmj-rm53

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