CVE-2022-1798Public exploit

Host file disclosure via unvalidated VMI paths

Published Sep 15, 2022 · Updated Apr 21, 2025

Path traversal in KubeVirt 0.20 through 0.55.0 allows remote authenticated users to read host files via crafted VMI storage paths. VMI path fields accept traversal sequences, while containerDisk and hot-plugged PVC content can supply symlinks that are mounted into virt-launcher. Exploitation requires permission to create VMIs and exposes files readable publicly or by UID or GID 107; SELinux limits most attempts, and /proc/self paths are inaccessible.

CVSS severity8.7
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in KubeVirt 0.20 through 0.55.0 allows remote authenticated users to read host files via crafted VMI storage paths. VMI path fields accept traversal sequences, while containerDisk and hot-plugged PVC content can supply symlinks that are mounted into virt-launcher. Exploitation requires permission to create VMIs and exposes files readable publicly or by UID or GID 107; SELinux limits most attempts, and /proc/self paths are inaccessible.

The record

CVE
CVE-2022-1798
Published
Sep 15, 2022
Updated
Apr 21, 2025
Vendor
KubeVirt
Product
KubeVirt
Classifications
CWE-20, CWE-22, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=unspecified <0.55.1
  2. Affected versionversion=unspecified <0.56.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

KubeVirt · KubeVirtversion=unspecified <0.55.1; version=unspecified <0.56.0

Published CVSS scores

8.7Google Inc.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:H
6.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

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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