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Fencer Vulns
high 7.5

CVE-2024-23322 json

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

published 2024-02-09 2 y ago modified 2026-09-08 2 mo ago also BIT-envoy-2024-23322 , EUVD-2024-20837 , GHSA-6p83-mfmh-qv38

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami envoy 1.26.7, 1.27.3, 1.28.1, 1.29.1
  • envoyproxy envoy 1.26.7, 1.27.3, 1.28.1, 1.29.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-23322 updated cvss 5.9

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

  • Red Hat OpenShift Service Mesh 2 servicemesh-proxy, servicemesh-proxy-wasm, openshift-service-mesh/proxyv2-rhel8
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami envoy
>=1.26.0, <1.26.7
>=1.27.0, <1.27.3
>=1.28.0, <1.28.1
>=1.29.0, <1.29.1
1.26.7
1.27.3
1.28.1
1.29.1

Affected products

  • envoyproxy envoy

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.