CVE-2026-53476

Description

A flaw was found in assisted-migration-agent. An unauthenticated attacker, located on the same local area network (LAN), can exploit a path traversal vulnerability. By crafting a specially designed gzipped tarball, the attacker can bypass security checks and write arbitrary files to the system. This could ultimately lead to the execution of unauthorized code on the appliance.

CVSS v3.1 Score

9.6

CRITICAL

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0029

Probability of exploitation

0.21%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-59 CWE-59

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
kubev2v	assisted_migration_agent	< 2026-06-07

References

Advisories & Patches

https://github.com/kubev2v/assisted-migration-agent/pull/256

Other References

https://access.redhat.com/security/cve/CVE-2026-53476 https://bugzilla.redhat.com/show_bug.cgi?id=2487233

Frequently Asked Questions

What is CVE-2026-53476? +

A flaw was found in assisted-migration-agent. An unauthenticated attacker, located on the same local area network (LAN), can exploit a path traversal vulnerability. By crafting a specially designed gzipped tarball, the attacker can bypass security checks and write arbitrary files to the system. This could ultimately lead to the execution of unauthorized code on the appliance. It has a CVSS v3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2026-53476? +

CVE-2026-53476 has a CVSS v3.1 score of 9.6 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0029, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-53476? +

CVE-2026-53476 affects products from kubev2v, specifically: assisted_migration_agent. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-53476? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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