GHSA-2hvh-cw5c-8q8q

CKAN vulnerable to fixed session IDs

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-64100

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	ckan	>= 2.10.0, < 2.10.9	2.10.9
PyPI	ckan	>= 2.11.0, < 2.11.4	2.11.4

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact 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. ### Patches This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4 ### References [https://en.wikipedia.org/wiki/Session_fixation](https://en.wikipedia.org/wiki/Session_fixation)

References

External links from the advisory. They lead to third-party sites.

https://github.com/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8q web
https://nvd.nist.gov/vuln/detail/CVE-2025-64100 advisory
https://github.com/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5 web
https://github.com/ckan/ckan package