Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-27886— Strapi may leak sensitive data via relational filtering due to lack of query sanitization

Quick assessment

Affected
strapi strapi
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Strapi是法国strapi社区的一套开源的内容管理系统（CMS）。 Strapi 4.0.0版本至5.37.0之前版本存在路径遍历漏洞，该漏洞源于通过关系字段过滤内容时未充分清理查询参数，可能导致未经身份验证的攻击者使用where查询参数对admin_users表的私有字段执行布尔预言攻击，提取管理员重置令牌实现账户接管。

AI Predicted 9.8 Difficulty: Easy EPSS 2.52% · P84

Affected Version Matrix 1

VendorProduct Version RangeStatus
strapi strapi >= 4.0.0, < 5.37.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-27886

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Strapi may leak sensitive data via relational filtering due to lack of query sanitization
Source: CVE Program / CVE List V5
Vulnerability Description
Strapi is an open source headless content management system. Strapi versions starting in 4.0.0 and prior to 5.37.0 did not sufficiently sanitize query parameters when filtering content via relational fields. An unauthenticated attacker could use the `where` query parameter on any publicly-accessible content-type with an `updatedBy` (or other admin-relation) field to perform a boolean-oracle attack against private fields on the joined `admin_users` table, including the `resetPasswordToken` field. Extracting an admin reset token via this oracle made full administrative account takeover possible without authentication. When a filter such as `where[updatedBy][resetPasswordToken][$startsWith]=a` was applied to a public Content API endpoint, the underlying query generation performed a `LEFT JOIN` against the `admin_users` table and emitted a `WHERE` clause referencing the joined column. The query parameter sanitization layer did not block operator chains that traversed into relational target schemas the caller had no read permission on, allowing the response count to be used as a one-bit oracle on any admin-table field. The patch in version 5.37.0 introduces explicit query-parameter sanitization at the controller and service boundary via three new primitives: `strictParam`, `addQueryParams`, and `addBodyParams`. Operator chains that traverse into restricted relational targets are now rejected before reaching the database.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Strapi 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Strapi是法国strapi社区的一套开源的内容管理系统（CMS）。 Strapi 4.0.0版本至5.37.0之前版本存在路径遍历漏洞，该漏洞源于通过关系字段过滤内容时未充分清理查询参数，可能导致未经身份验证的攻击者使用where查询参数对admin_users表的私有字段执行布尔预言攻击，提取管理员重置令牌实现账户接管。
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
strapi strapi >= 4.0.0, < 5.37.0 -

II. Public POCs for CVE-2026-27886

# POC Description Source Link Shenlong Link
1 Strapi versions starting in 4.0.0 and prior to 5.37.0 did not sufficiently sanitize query parameters when filtering content via relational fields. An attacker could use the `where` query parameter on any publicly-accessible content-type with an `updatedBy` field to perform a boolean-oracle attack against private fields on the joined admin_users table, including the resetPasswordToken field, enabling full administrative account takeover without authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-27886.yaml POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-27886

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-27886 (1)

Same Patch Batch · strapi · 2026-05-14 · 5 CVEs total

CVE-2026-22706 Strapi: Password Reset Does Not Revoke Existing Refresh Sessions
CVE-2026-22707 Strapi Upload Plugin MIME Validation Bypass via Content API
CVE-2026-22599 Strapi Vulnerable to SQL Injection in Content Type Builder
CVE-2025-64526 Strapi has a rate limit bypass on users-permissions plugin via attacker-controlled email k

IV. Related Vulnerabilities

Same product: strapi
Same vendor: strapi
Same weakness: CWE-22

V. Comments for CVE-2026-27886

No comments yet

Leave a comment