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

CVSS 6.1 · Medium EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProductVersion RangeStatus
ckanckan>= 2.11.0, < 2.11.5affected
< 2.10.10affected
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨站请求伪造(CSRF)
Source: NVD (National Vulnerability Database)
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

VendorProductAffected VersionsCPESubscribe
ckanckan >= 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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Same Patch Batch · ckan · 2026-05-13 · 4 CVEs total

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