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CVE-2022-29225

Zip bomb vulnerability in Envoy

7.5 HighFix available

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.61%Up 0.7 points since Jun 10, 2022
90%50%10%1%

What each source reports

CVE List Score used 7.5

Zip bomb vulnerability in Envoy

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Record
CVE-2022-29225
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400, CWE-409
Updated
2026-11-02
EUVDEUVD-2022-33587 7.5

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Record
EUVD-2022-33587
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
NVD 7.5

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Record
CVE-2022-29225
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400, CWE-409
Updated
2026-11-02
OSV 7.5

Zip bomb vulnerability in Envoy

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Record
CVE-2022-29225
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400, CWE-409
Updated
2026-11-02
OSVRHSA-2022:5003 7.5

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.0.10 security update

Record
RHSA-2022:5003
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2022:5004 10.0

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.1.3 security update

Record
RHSA-2022:5004
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Updated
2026-11-02
OSVBIT-envoy-2022-29225 No score

Zip bomb vulnerability in Envoy

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 secompressors accumulate decompressed data into an intermediate buffer before overwriting the body in the decode/encodeBody. This may allow an attacker to zip bomb the decompressor by sending a small highly compressed payload. Maliciously constructed zip files may exhaust system memory and cause a denial of service. Users are advised to upgrade. Users unable to upgrade may consider disabling decompression.

Record
BIT-envoy-2022-29225
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
envoy
Bitnami
 before 1.22.1
1.22.1
servicemesh-proxy
Red Hat:service_mesh:2.0::el8
From an advisory covering 2 CVEs
 before 0:2.0.10-1.el8
0:2.0.10-1.el8
servicemesh
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-cni
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-operator
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-2.el8
0:2.1.3-2.el8
servicemesh-pilot-agent
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-pilot-discovery
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-prometheus
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.23.0-7.el8
0:2.23.0-7.el8
servicemesh-proxy
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-proxy-debuginfo
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-proxy-debugsource
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-proxy-wasm
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.el8
servicemesh-ratelimit
Red Hat:service_mesh:2.1::el8
From an advisory covering 8 CVEs
 before 0:2.1.3-1.el8
0:2.1.3-1.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-2022-29225 is a high vulnerability (CVSS 7.5) in Envoyproxy Envoy, published June 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.61%, the 76th percentile. Fixed in envoy 1.22.1.

References

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