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CVE-2026-53476: Improper Link Resolution Before File Access ('Link Following')

0
Critical
Published: 06/10/2026 (06/10/2026, 15:31:33 UTC)
Source: CVE Database V5

Description

CVE-2026-53476 is a critical path traversal vulnerability in the assisted-migration-agent component. An unauthenticated attacker on the same LAN can craft a malicious gzipped tarball to bypass security checks and write arbitrary files, potentially leading to unauthorized code execution on the appliance. Red Hat has assessed that this vulnerability does not affect any currently supported Red Hat products.

CVSS v3.1

Score 9.6critical

Attack Vector
Adjacent Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected software

GitHub Actionsmore threats →cve
assisted-migration-agent
pkg:github/assisted-migration-agent
Affected versions
=0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/15/2026, 17:17:52 UTC

Technical Analysis

This vulnerability involves improper link resolution before file access (CWE-59) in the assisted-migration-agent. By exploiting a specially crafted gzipped tarball, an attacker on the local network can perform path traversal to write arbitrary files to the system, which may lead to execution of unauthorized code. The vulnerability has a CVSS 3.1 score of 9.6 (critical) with attack vector local network, low attack complexity, no privileges required, no user interaction, and impacts confidentiality, integrity, and availability with scope change. Red Hat's advisory states that no currently supported Red Hat products are affected by this issue.

Potential Impact

Successful exploitation allows an unauthenticated attacker on the same LAN to write arbitrary files to the system via path traversal, potentially resulting in unauthorized code execution. This impacts confidentiality, integrity, and availability of the affected appliance. However, Red Hat confirms that no currently supported Red Hat products are affected by this vulnerability.

Mitigation Recommendations

Red Hat has determined that this vulnerability does not affect any currently supported Red Hat products. Therefore, no action is required for Red Hat customers at this time. Users of other affected software should apply any available patches or updates from their respective vendors. Patch status for other products is not confirmed here; check vendor advisories accordingly.

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Technical Details

Data Version
5.2
Assigner Short Name
redhat
Date Reserved
2026-06-09T17:03:29.628Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://access.redhat.com/security/cve/CVE-2026-53476","vendor":"Red Hat"}]

Threat ID: 6a29799fc9170919df2daeec

Added to database: 06/10/2026, 14:50:07 UTC

Last enriched: 08/15/2026, 17:17:52 UTC

Last updated: 09/13/2026, 22:01:35 UTC

Views: 118

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