CVE-2026-53476
CVE-2026-53476 is a critical-severity vulnerability in Kubev2v Assisted Migration Agent with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.6)
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-36033
- Weakness: CWE-22
- Affected product: Kubev2v Assisted Migration Agent
- Published:
- Last modified:
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.
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.
- How severe is CVE-2026-53476?
- CVE-2026-53476 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-53476 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-53476?
- CVE-2026-53476 affects Kubev2v Assisted Migration Agent. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-53476?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-53476 have an EU (EUVD) identifier?
- Yes. CVE-2026-53476 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36033.
- When was CVE-2026-53476 published?
- CVE-2026-53476 was published on 2026-06-10 and last updated on 2026-06-17.
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
Affected products (1)
- cpe:2.3:a:kubev2v:assisted_migration_agent:*:*:*:*:*:*:*:*
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