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Public proof of conceptFix available

CVE-2022-29225

A public proof of concept exists; no exploitation attested.

  • Published2022-06-09
  • Fixed in1.22.1
  • WeaknessCWE-400 · CWE-409

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-06-0920:15CVE publishedNVD

Versions per branch

NVD · OSV
Envoy
BranchAffectedFixed in
1.22< 1.22.11.22.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • envoyproxy envoy
    Affected
    • = < 1.22.1no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-06-09

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • servicemeshRed Hat:service_mesh:2.1::el8all versions · fixed in 0:2.1.3-1.el8and 8 other packages
  • servicemesh-operatorRed Hat:service_mesh:2.1::el8all versions · fixed in 0:2.1.3-2.el8
  • servicemesh-prometheusRed Hat:service_mesh:2.1::el8all versions · fixed in 0:2.23.0-7.el8
  • servicemesh-proxyRed Hat:service_mesh:2.0::el8all versions · fixed in 0:2.0.10-1.el8

Vendor advisories

  • CVE-2022-29225 Red Hat Product Security15 products fixed

    envoy: Decompressors can be zip bombed

  • RHSA-2022:5004 Red Hat Product Security11 products fixed

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

  • RHSA-2022:5003 Red Hat Product Security4 products fixed

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

Full record on NVD

Fix

  1. Update Envoy to 1.22.1
  2. Vendor fix Red Hat Product Security RHSA-2022:5004 · 11 productsThe OpenShift Service Mesh Release Notes provide information on the features and known issues. See the link in the References section.
  3. Vendor fix Red Hat Product Security RHSA-2022:5003 · 4 productsThe OpenShift Service Mesh release notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
  4. Workaround from the vendor Red Hat Product Security RHSA-2022:5004 · 36 productsThis can be mitigated by disabling decompression in Envoy.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-04-22
  • CNACVSS 3.17.5known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-400, CWE-409known since 2026-10-23
  • FIRST EPSSEPSS score1.6 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-06-09
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-75hv-2jjj-89hh

Frequently asked questions

What is CVE-2022-29225?

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.

Is CVE-2022-29225 actively exploited?

A proof-of-concept exploit exists for CVE-2022-29225, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-29225?

CVE-2022-29225 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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