CVE-2026-33997
Description
A flaw was found in Moby, an open-source container framework. This vulnerability allows for a privilege validation bypass during docker plugin install. Due to an error in the daemon's privilege comparison logic, the system may incorrectly accept a plugin's requested privileges that differ from those approved by the user. This could lead to unauthorized privilege escalation for installed plugins.
Statement
An important flaw in Moby, an open-source container framework, allows for a privilege validation bypass during docker plugin install. This issue stems from an error in the daemon's privilege comparison logic, which could lead to unauthorized privilege escalation for installed plugins. Red Hat products that leverage Moby and allow Docker plugin installation are affected.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.4 | 8.1 | 8.4 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | High | None | High |
| User Interaction | Required | Required | Required |
| Scope | Changed | Unchanged | Changed |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | None | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Red Hat CVSS v3 Score Explanation
BY Red Hat Standards, an unauthorized privilege escalation vulnerability could potentially result in a DoS and so A:H which raises the CVSS to 8.4
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can access restricted functionality and/or sensitive information that may include administrative functionality and user accounts.
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