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CVE-2026-57570— backpack/crud: HasMany/MorphMany relation fields allow cross-tenant record re-parenting (IDOR) via attachManyRelation

Quick assessment

Affected
Laravel-Backpack CRUD
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Backpack for Laravel Backpack是Backpack for Laravel团队的一个帮助开发者快速构建后台管理界面的开发工具包。 Backpack for Laravel Backpack 6.0.0版本至6.8.15之前版本和7.0.0版本至7.0.47之前版本存在授权问题漏洞，该漏洞源于CRUD创建和更新操作中通过attachManyRelation处理HasMany和MorphMany时，未一致限制提交的子主键只能更新属于当前父记录或开发者定义的关系范围内的记录，可能导致经

CVSS 6.5 · Medium EPSS 0.44% · P38

Affected Version Matrix 2

VendorProduct Version RangeStatus
Laravel-Backpack CRUD >= 6.0.0, < 6.8.15 affected
>= 7.0.0, < 7.0.47 affected
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I. Basic Information for CVE-2026-57570

Vulnerability Information
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Vulnerability Title
backpack/crud: HasMany/MorphMany relation fields allow cross-tenant record re-parenting (IDOR) via attachManyRelation
Source: CVE Program / CVE List V5
Vulnerability Description
backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.15 and 7.0.47, HasMany and MorphMany handling through attachManyRelation during CRUD create and update operations accepts submitted child primary keys without consistently restricting updates to records belonging to the current parent or permitted by the developer-defined relation scope. An authenticated low-privilege administrator who can edit a parent form exposing an affected multiple-relation field can cause unrelated child records to be reassigned, detached, nulled, or deleted across ownership or tenant boundaries. Exploitation requires related records that should not be attachable or removable by that administrator and the absence of additional application-level authorization around submitted relation values. This issue is distinct from earlier direct main-entity CRUD scoping fixes because it affects secondary models modified by relationship-saving logic. This issue is fixed in versions 6.8.15 and 7.0.47.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Backpack for Laravel Backpack 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Backpack for Laravel Backpack是Backpack for Laravel团队的一个帮助开发者快速构建后台管理界面的开发工具包。 Backpack for Laravel Backpack 6.0.0版本至6.8.15之前版本和7.0.0版本至7.0.47之前版本存在授权问题漏洞，该漏洞源于CRUD创建和更新操作中通过attachManyRelation处理HasMany和MorphMany时，未一致限制提交的子主键只能更新属于当前父记录或开发者定义的关系范围内的记录，可能导致经
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Laravel-Backpack CRUD >= 6.0.0, < 6.8.15 -

II. Public POCs for CVE-2026-57570

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III. Intelligence Information for CVE-2026-57570

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Patches & Fixes for CVE-2026-57570 (4)

Vendor Advisories for CVE-2026-57570 (1)

Vendor Pages for CVE-2026-57570 (1)

Other References for CVE-2026-57570 (1)

Same Patch Batch · Laravel-Backpack · 2026-09-14 · 8 CVEs total

CVE-2026-54178 8.1 HIGH backpack/crud: Arbitrary file deletion via attacker-controlled clear_<attr>[] in HasUpload
CVE-2026-54182 8.1 HIGH backpack/crud: OS command injection in Stats::makeCurlRequest via attacker-controlled Host
CVE-2026-54175 7.6 HIGH backpack/crud: Unverified password change in MyAccountController via mass assignment
CVE-2026-54180 7.6 HIGH backpack/crud: CRUD panel query scopes are not enforced on Update, Delete, and Reorder (cr
CVE-2026-54177 6.6 MEDIUM backpack/crud: HasUploadFields keeps the attacker-supplied file extension — public-disk up
CVE-2026-54176 6.5 MEDIUM backpack/crud: MyAccountController allows changing the login email without a current-passw
CVE-2026-54181 5.4 MEDIUM backpack/crud: Stored XSS in the color column — the `@if($column['escaped'])` branches are

IV. Related Vulnerabilities

Same product: CRUD
Same vendor: Laravel-Backpack
Same weakness: CWE-862