CVE-2022-31080Network attack vector

Authenticated service interruption via unbounded response buffering

Published Jul 11, 2022 · Updated Apr 23, 2025

Uncontrolled resource consumption in KubeEdge before 1.9.4, 1.10.0 through 1.10.1, and 1.11.0 allows remote authenticated users to interrupt services. The viaduct WSClient reads an entire WebSocket response body into memory without a size limit, so an oversized response exhausts available memory. Exploitation requires an authenticated edge-side connection to CloudHub, and the resulting exhaustion denies service to the process invoking WSClient.

CVSS severity4.4
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in KubeEdge before 1.9.4, 1.10.0 through 1.10.1, and 1.11.0 allows remote authenticated users to interrupt services. The viaduct WSClient reads an entire WebSocket response body into memory without a size limit, so an oversized response exhausts available memory. Exploitation requires an authenticated edge-side connection to CloudHub, and the resulting exhaustion denies service to the process invoking WSClient.

The record

CVE
CVE-2022-31080
Published
Jul 11, 2022
Updated
Apr 23, 2025
Vendor
KubeEdge
Product
KubeEdge
Classifications
CWE-400, CWE-770, T1499.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.10.0, < 1.10.2
  2. Affected versionversion== 1.11.0
  3. Affected versionversion=< 1.9.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

KubeEdge · KubeEdgeversion=>= 1.10.0, < 1.10.2; version== 1.11.0; version=< 1.9.4

Published CVSS scores

4.4GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-770Allocation of Resources Without Limits or Throttling
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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