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Fencer Vulns
high 7.5

CVE-2022-29228 json

Reachable assertion in Envoy

published 2022-06-09 4 y ago modified 2026-09-08 2 mo ago also BIT-envoy-2022-29228 , EUVD-2022-33590 , GHSA-rww6-8h7g-8jf6

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter would try to invoke the remaining filters in the chain after emitting a local response, which triggers an ASSERT() in newer versions and corrupts memory on earlier versions. continueDecoding() shouldn’t ever be called from filters after a local reply has been sent. Users are advised to upgrade. There are no known workarounds for this issue.

Patch / fix

  • bitnami envoy 1.22.1
  • envoyproxy envoy 1.22.1
  • servicemesh service mesh 2.1 2.1.3-1.el8
  • servicemesh-cni service mesh 2.1 2.1.3-1.el8
  • servicemesh-proxy service mesh 2.1 2.1.3-1.el8
  • servicemesh-operator service mesh 2.1 2.1.3-2.el8
  • servicemesh-ratelimit service mesh 2.1 2.1.3-1.el8
  • servicemesh-prometheus service mesh 2.1 2.23.0-7.el8
  • servicemesh-proxy-wasm service mesh 2.1 2.1.3-1.el8
  • servicemesh-pilot-agent service mesh 2.1 2.1.3-1.el8

red hat advisories RHSA-2022:5004

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-2022-29228 updated cvss 7.5

envoy: oauth filter calls continueDecoding() from within decodeHeaders()

  • Red Hat OpenShift Service Mesh 2.0 servicemesh-proxy
    affected: no fix available
  • Red Hat OpenShift Service Mesh 2.1 servicemesh-proxy 2.1.3-1.el8, servicemesh-proxy-wasm 2.1.3-1.el8
    fixed: vendor fix RHSA-2022:5004
  • Red Hat OpenShift Service Mesh 2.1 servicemesh 2.1.3-1.el8, servicemesh-cni 2.1.3-1.el8, servicemesh-operator 2.1.3-2.el8, servicemesh-ratelimit 2.1.3-1.el8, servicemesh-pilot-agent 2.1.3-1.el8, servicemesh-prometheus 2.23.0-7.el8, +1 more
    not affected: vulnerable code not present

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
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.28% chance of exploitation in the next 30 days, higher than 70% 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
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
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
<1.22.1
1.22.1

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.