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CVE-2026-53475: Improper Certificate Validation

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

Description

CVE-2026-53475 is a critical vulnerability in the assisted-migration-agent application caused by improper TLS certificate validation when communicating with vCenter. This flaw allows a Man-in-the-Middle (MITM) attacker to intercept and steal vCenter administrator credentials, potentially leading to unauthorized access to vCenter environments. The vulnerability has a CVSS score of 9.3. According to the vendor advisory, this issue does not affect any currently supported Red Hat products. No specific affected versions or patches are detailed in the advisory at this time.

CVSS v3.1

Score 9.3critical

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

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, 17:18:00 UTC

Technical Analysis

The assisted-migration-agent application contains a flaw where TLS certificate validation is improperly implemented, specifically by hardcoding insecure TLS connections when communicating with vCenter. This improper certificate validation (CWE-295) enables a Man-in-the-Middle attacker to intercept and harvest vCenter administrator credentials. The vulnerability has a critical impact with a CVSS 3.1 score of 9.3 (AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N), indicating network-level attack complexity with no privileges or user interaction required, and results in complete confidentiality and integrity compromise of credentials. The Red Hat advisory states that this vulnerability does not affect any currently supported Red Hat products, and no remediation level or patches are currently provided. The advisory references the assisted-migration-agent GitHub repository and Bugzilla for additional technical details.

Potential Impact

Successful exploitation allows a Man-in-the-Middle attacker to intercept and steal vCenter administrator credentials, which can lead to unauthorized access to vCenter environments. This compromises confidentiality and integrity of credentials but does not impact availability. The vulnerability is critical due to the high privileges associated with the stolen credentials and the ease of exploitation (no user interaction or privileges required).

Mitigation Recommendations

The vendor advisory states that this vulnerability does not affect any currently supported Red Hat products, implying no action is required for those users. No official patch or remediation guidance is currently provided. Users of the assisted-migration-agent application should monitor the vendor advisory and related project repositories for updates and patches. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.

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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-2026-53475","vendor":"Red Hat"}]

Threat ID: 6a29799fc9170919df2daee7

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

Last enriched: 08/15/2026, 17:18:00 UTC

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

Views: 270

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