What is CVE-2024-32976?

CVE-2024-32976 is a high-severity vulnerability in Envoyproxy Envoy, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2024-06-04.

How severe is CVE-2024-32976?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Envoyproxy Envoy

CVE-2024-32976

Envoy is a cloud-native, open source edge and service proxy. Envoyproxy with a Brotli filter can get into an endless loop during decompression of Brotli data with extra input.

Published 2024-06-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Envoyproxy Envoy — versions >= 1.30.0, <= 11.30.1, >= 1.29.0, <= 1.29.4, >= 1.28.0, <= 1.28.3

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

github.com/envoyproxy/envoy/security/advisories/GHSA-7wp5-c2vq-4f8m (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-32976?: CVE-2024-32976 is a high-severity vulnerability in Envoyproxy Envoy, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2024-06-04.
How severe is CVE-2024-32976?: High severity. CVSS v3 base score is 7.5 out of 10.