CVE-2024-23322

Envoy crashes when idle and request per try timeout occur within the backoff interval

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.68 % · percentile 52 (2026-10-27)
State: PUBLISHED
Published: 2024-02-09
Updated: 2024-08-01
Assigner: GitHub_M
NVD status: Modified

Description

Envoy is a high-performance edge/middle/service proxy. Envoy will crash when certain timeouts happen within the same interval. The crash occurs when the following are true: 1. hedge_on_per_try_timeout is enabled, 2. per_try_idle_timeout is enabled (it can only be done in configuration), 3. per-try-timeout is enabled, either through headers or configuration and its value is equal, or within the backoff interval of the per_try_idle_timeout. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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-416

European references

ENISA EUVD · EUVD-2024-20837
GCVE · GCVE-0-2024-23322

CERT-FR advisories

CERTFR-2024-AVI-0156 — Multiples vulnérabilités dans les produits Tenable · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.26.0 < 1.26.7
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.27.0 < 1.27.3
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.28.0 < 1.28.1
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* ≥ 1.29.0 < 1.29.1

Affected products

Product	Versions
envoyproxy · envoy	affected >= 1.29.0, < 1.29.1 ; affected >= 1.28.0, < 1.28.1 ; affected >= 1.27.0, < 1.27.3 ; affected < 1.26.7

References

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