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CVE-2026-41255— CKAN: CSRF exemption primed by anonymous requests

Quick assessment

Affected
ckan ckan
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.

CKAN是CKAN开源的一个开源 DMS（数据管理系统）。用于为数据中心和数据门户提供动力。 CKAN 2.10.10之前版本和2.11.5之前版本存在跨站请求伪造漏洞，该漏洞源于通过令牌或未经身份验证的请求访问视图将端点标记为不需要CSRF保护，导致未经身份验证的请求可能命中受保护端点，使其在服务器进程生命周期内免于CSRF保护。

CVSS 6.1 · Medium EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
ckan ckan >= 2.11.0, < 2.11.5 affected
< 2.10.10 affected
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I. Basic Information for CVE-2026-41255

Vulnerability Information
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Vulnerability Title
CKAN: CSRF exemption primed by anonymous requests
Source: CVE Program / CVE List V5
Vulnerability Description
CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.10 and 2.11.5, Access to the views via tokens or unauthenticated requests marked the endpoint as not requiring CSRF protection. The marking was a member variable in flask-wtf.csrf.CSRFProtect(), which was stored as a module level variable in the flask_app middleware. This API was never intended for request level changes, it is primarily a decorator for static configuration. An unauthenticated request could hit a protected endpoint, exempting it from CSRF protection for the life of the particular server process. (e.g. one worker of uwsgi). This vulnerability is fixed in 2.10.10 and 2.11.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
CKAN 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CKAN是CKAN开源的一个开源 DMS（数据管理系统）。用于为数据中心和数据门户提供动力。 CKAN 2.10.10之前版本和2.11.5之前版本存在跨站请求伪造漏洞，该漏洞源于通过令牌或未经身份验证的请求访问视图将端点标记为不需要CSRF保护，导致未经身份验证的请求可能命中受保护端点，使其在服务器进程生命周期内免于CSRF保护。
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
ckan ckan >= 2.11.0, < 2.11.5 -

II. Public POCs for CVE-2026-41255

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III. Intelligence Information for CVE-2026-41255

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Vendor Advisories for CVE-2026-41255 (1)

Other References for CVE-2026-41255 (1)

Same Patch Batch · ckan · 2026-05-13 · 4 CVEs total

CVE-2026-41132 CKAN: No certificate validation on STMP connection
CVE-2026-42032 CKAN: Unauthenticated Authorization Bypass in `datastore_search_sql`
CVE-2026-42031 CKAN: Unauthenticated SQL Injection and Authorization Bypass in `datastore_search_sql`

IV. Related Vulnerabilities

Same product: ckan
Same vendor: ckan
Same weakness: CWE-352

V. Comments for CVE-2026-41255

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