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OpenAdvisories
Medium · 6.1 CVE-2025-64100 EUVD-2025-36700GHSA-2hvh-cw5c-8q8qPYSEC-2026-1246

CKAN Vulnerable to Session Cookie Fixation

Published Oct 29, 2025 · Updated Oct 29, 2025 · Assigned by GitHub_M

Description

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.9 and 2.11.4, session ids could be fixed by an attacker if the site is configured with server-side session storage (CKAN uses cookie-based session storage by default). The attacker would need to either set a cookie on the victim's browser or steal the victim's currently valid session. Session identifiers are now regenerated after each login. This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4

Affected products

VendorProductAffectedFixed
ckan ckan < 2.10.9, >= 2.11.0, < 2.11.4 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI ckan >= 2.10.0, < 2.10.9 2.10.9 GHSA-2hvh-cw5c-8q8q
PyPI ckan >= 2.11.0, < 2.11.4 2.11.4 GHSA-2hvh-cw5c-8q8q
PyPI ckan >= 2.10.0, < 2.10.9 · >= 2.11.0, < 2.11.4 2.10.9, 2.11.4 PYSEC-2026-1246

References