Security readout for executives and security teams
Plain-English summary
CVE-2026-28225 affects Manyfold, a self-hosted 3D model management application. Before version 0.133.1, one controller could load model records without the normal authorization scope. This may let a user affect model file actions they should not be allowed to access. Public sources rate it medium severity and identify version 0.133.1 as the fix.
Executive priority
Treat as a near-term update for organizations using Manyfold, especially shared or internet-accessible instances. It is not currently supported as actively exploited by the provided sources, but authorization bypasses can undermine data governance and tenant separation.
Technical view
Manyfold’s ModelFilesController get_model method used Model.find_param(params[:model_id]) instead of policy_scope(Model).find_param(), bypassing Pundit authorization scoping. The issue is classified as CWE-639, authorization bypass through user-controlled key. CVSS 3.1 is 5.3, network exploitable, low complexity, no privileges or user interaction, with low integrity impact.
Likely exposure
Exposure is limited to Manyfold deployments running versions earlier than 0.133.1. The cited advisory describes a self-hosted web application, so internet-facing or broadly accessible instances have higher operational risk. The provided sources do not identify other affected products or hosted services.
Exploitation context
The CVE record does not indicate CISA KEV listing, and the provided sources do not report active exploitation. The flaw is authorization-related and network reachable per CVSS, but public evidence here does not establish real-world abuse or exploit tooling.
Researcher notes
The root cause is missing Pundit policy_scope in ModelFilesController while other controllers reportedly use scoped lookup. The source bundle names lines 158-160 and compares ModelsController line 263, but this analysis relies on the advisory description rather than independent code review.
Mitigation direction
- Upgrade Manyfold to version 0.133.1 or later.
- Review the GitHub security advisory for vendor guidance.
- Restrict access to Manyfold until upgraded, especially for untrusted users.
- Review model and file permissions after remediation.
Validation and detection
- Inventory Manyfold instances and confirm running versions.
- Flag any Manyfold version earlier than 0.133.1.
- Confirm upgrade completion to 0.133.1 or later.
- Review application logs for unusual model file access attempts.
- Validate that user access boundaries still match business expectations.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-639: Exact CWE lookup
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Open ATT&CK lookupCVE-2026-28225 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/manyfold3d/manyfold/security/advisories/GHSA-v8pw-3r2f-3fqmCVE reference · x_refsource_CONFIRM
- https://github.com/manyfold3d/manyfold/releases/tag/v0.133.1CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.