CVE-2026-53476: Improper Link Resolution Before File Access ('Link Following')
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.
AI Analysis
Technical Summary
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.
CVE-2026-53476: Improper Link Resolution Before File Access ('Link Following')
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
Affected software
pkg:github/assisted-migration-agentRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
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.
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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