Security readout for executives and security teams
Plain-English summary
A logged-in Manyfold user could rename an uploaded 3D model file so the application moves or writes it outside the intended library directory. That creates a business risk of unauthorized file changes on self-hosted Manyfold systems running vulnerable versions.
Executive priority
Prioritize patching internet-accessible or multi-user Manyfold instances. The issue is high severity, but current source evidence does not confirm active exploitation.
Technical view
CVE-2026-46336 is an authenticated path traversal flaw in Manyfold versions 0.96.0 through before 0.140.0. The vulnerable file rename path used user-controlled filenames in File.join(model.path, filename) without sufficient sanitization. CVSS 3.1 is 7.1, with high integrity impact and low availability impact.
Likely exposure
Exposure is limited to self-hosted Manyfold deployments running versions >= 0.96.0 and < 0.140.0. An attacker needs an authenticated account with relevant file interaction capability.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires authentication and no user interaction, and could affect files outside the configured library directory within application permissions.
Researcher notes
Focus review on rename handling in app/models/model_file.rb and the v0.140.0 fix. The risk is path traversal through filename handling, mapped to CWE-22 and CWE-73, with integrity as the main impact.
Mitigation direction
- Upgrade Manyfold to version 0.140.0 or later.
- Review the vendor advisory, pull request, and release notes before remediation.
- Restrict untrusted user access until patched.
- Inspect library-adjacent paths for unexpected file moves or writes.
Validation and detection
- Inventory Manyfold deployments and record exact running versions.
- Confirm no production instance runs >= 0.96.0 and < 0.140.0.
- Review audit logs for suspicious file rename activity.
- Verify upgraded instances report version 0.140.0 or later.
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-73: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-46336 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
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.
SSVC decision data
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:L/UI:N/S:U/C:N/I:H/A:L2.84.2GitHub_MVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/manyfold3d/manyfold/security/advisories/GHSA-j5f9-r7wf-hv37CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/manyfold3d/manyfold/pull/6122CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/manyfold3d/manyfold/commit/ed6a53e54926708594c07d222155ac3a22f93174CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/manyfold3d/manyfold/releases/tag/v0.140.0CVE reference, GitHub_M · 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.