CVE-2024-32976

Envoy can enter an endless loop while decompressing Brotli data with extra input

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.68 % · percentile 52 (2026-10-27)
State: PUBLISHED
Published: 2024-06-04
Updated: 2024-09-03
Assigner: GitHub_M
NVD status: Modified

Description

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-835

European references

ENISA EUVD · EUVD-2024-30728
GCVE · GCVE-0-2024-32976

CERT-FR advisories

CERTFR-2024-AVI-0538 — Multiples vulnérabilités dans Tenable Identity Exposure · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.18.0 < 1.27.6
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.28.0 < 1.28.4
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.29.0 < 1.29.5
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.30.0 < 1.30.2

Affected products

Product	Versions
envoyproxy · envoy	affected >= 1.30.0, <= 11.30.1 ; affected >= 1.29.0, <= 1.29.4 ; affected >= 1.28.0, <= 1.28.3 ; affected > 1.18.0, <= 1.27.5

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-7wp5-c2vq-4f8m

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD