CVE-2026-53476

Unauthenticated file write via chained tar symlinks

Published Jun 10, 2026 · Updated Jun 10, 2026

Path traversal in KubeV2V Assisted Migration Agent before 0.16.0 allows remote attackers on the same LAN to write arbitrary files. The PUT /inspector/vddk handler passes gzipped tar entries to extractTarGz, whose lexical path check does not resolve parent-directory symlinks already on disk. An unauthenticated LAN-adjacent sender can chain a symlink entry with a later file entry, escaping the extraction directory and overwriting files as UID 1001; targeted cache or configuration writes enable code execution and credential exposure.

CVSS severity9.6
Critical
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in KubeV2V Assisted Migration Agent before 0.16.0 allows remote attackers on the same LAN to write arbitrary files. The PUT /inspector/vddk handler passes gzipped tar entries to extractTarGz, whose lexical path check does not resolve parent-directory symlinks already on disk. An unauthenticated LAN-adjacent sender can chain a symlink entry with a later file entry, escaping the extraction directory and overwriting files as UID 1001; targeted cache or configuration writes enable code execution and credential exposure.

The record

CVE
CVE-2026-53476
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
KubeV2V
Product
Assisted Migration Agent
Classifications
CWE-59, CWE-22, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record 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=0 <bcae0438ad8386321a300413d71c982a11b7b5b7

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

KubeV2V · Assisted Migration Agentversion=0 <bcae0438ad8386321a300413d71c982a11b7b5b7

Published CVSS scores

9.6Red Hat, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo