Every CVE Search/ Get API key

CVE-2022-21654

Incorrect configuration handling allows TLS session re-use without re-validation in Envoy

7.4 HighFix available

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

1.09%Up 0.2 points since Feb 23, 2022
90%50%10%1%

What each source reports

CVE List Score used 7.4

Incorrect configuration handling allows TLS session re-use without re-validation in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Record
CVE-2022-21654
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-295
Updated
2026-11-02
EUVDEUVD-2022-26872 7.4

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Record
EUVD-2022-26872
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-02
NVD 7.4

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Record
CVE-2022-21654
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-295
Updated
2026-11-02
OSV 7.4

Incorrect configuration handling allows TLS session re-use without re-validation in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Record
CVE-2022-21654
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-295
Updated
2026-11-02
OSVRHSA-2022:1275 9.4

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.1.2 security update

Record
RHSA-2022:1275
CVSS 3.1
9.4 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVRHSA-2022:1276 9.4

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.0.9 security update

Record
RHSA-2022:1276
CVSS 3.1
9.4 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVBIT-envoy-2022-21654 No score

Incorrect configuration handling allows TLS session re-use without re-validation in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Record
BIT-envoy-2022-21654
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
envoy
Bitnami
 1.7.0 up to 1.18.6, 1.19.0 up to 1.19.3, 1.20.0 up to 1.20.2, 1.21.0 up to 1.21.1
1.18.61.19.31.20.21.21.1
servicemesh-proxy
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-proxy-debuginfo
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-proxy-debugsource
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-proxy-wasm
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-cni
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-pilot-agent
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh-pilot-discovery
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.2-4.el8
0:2.1.2-4.el8
servicemesh
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
Show 8 moreShow less
Affected packages
PackageAffectedFixed
servicemesh-istioctl
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
servicemesh-mixc
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
servicemesh-mixs
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
servicemesh-pilot-agent
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
servicemesh-pilot-discovery
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8
kiali
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:v1.24.7.redhat1-1.el8
0:v1.24.7.redhat1-1.el8
servicemesh-prometheus
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.14.0-16.el8.1
0:2.14.0-16.el8.1
servicemesh-proxy
Red Hat:service_mesh:2.0::el8
From an advisory covering 16 CVEs
 before 0:2.0.9-3.el8
0:2.0.9-3.el8

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-21654 is a high vulnerability (CVSS 7.4) in Envoyproxy Envoy, published February 22, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. Fixed in envoy 1.18.6.

References

Show 80 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open