GHSA-PMWX-RM49-XV39
Vulnerability from github – Published: 2026-07-29 17:06 – Updated: 2026-07-29 17:06
VLAI
Summary
ActiveRecord::Tenanted::Storage::DiskService#path_for has a possible path traversal
Details
Summary
Active Record Tenanted's override of Active Storage's DiskService#path_for does not validate that the resolved filesystem path remains within the storage root directory. If a blob key containing path traversal sequences (e.g. ../) is used, it could allow reading, writing, or deleting arbitrary files on the server. Blob keys are expected to be trusted strings, but some applications could be passing user input as keys and would be affected.
Mitigation
Upgrade to Active Record Tenanted v0.7.0 or later.
As a workaround, do not use untrusted user input as blob keys. Blob keys are expected to be trusted strings.
Credit
This issue was responsibly reported by @tonghuaroot.
Severity
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "activerecord-tenanted"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.7.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-29T17:06:00Z",
"nvd_published_at": null,
"severity": "LOW"
},
"details": "### Summary\n\nActive Record Tenanted\u0027s override of Active Storage\u0027s `DiskService#path_for` does not validate that the resolved filesystem path remains within the storage root directory. If a blob key containing path traversal sequences (e.g. `../`) is used, it could allow reading, writing, or deleting arbitrary files on the server. Blob keys are expected to be trusted strings, but some applications could be passing user input as keys and would be affected.\n\n### Mitigation\n\nUpgrade to Active Record Tenanted v0.7.0 or later.\n\nAs a workaround, do not use untrusted user input as blob keys. Blob keys are expected to be trusted strings.\n\n### Credit\n\nThis issue was responsibly reported by @tonghuaroot.",
"id": "GHSA-pmwx-rm49-xv39",
"modified": "2026-07-29T17:06:00Z",
"published": "2026-07-29T17:06:00Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/basecamp/activerecord-tenanted/security/advisories/GHSA-pmwx-rm49-xv39"
},
{
"type": "WEB",
"url": "https://github.com/rails/rails/security/advisories/GHSA-9xrj-h377-fr87"
},
{
"type": "WEB",
"url": "https://github.com/basecamp/activerecord-tenanted/pull/307"
},
{
"type": "WEB",
"url": "https://github.com/basecamp/activerecord-tenanted/commit/b242c8ad9bf58bbd7f5a032d153b0f29db54b9ba"
},
{
"type": "PACKAGE",
"url": "https://github.com/basecamp/activerecord-tenanted"
},
{
"type": "WEB",
"url": "https://github.com/basecamp/activerecord-tenanted/releases/tag/v0.7.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "ActiveRecord::Tenanted::Storage::DiskService#path_for has a possible path traversal"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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