CVE-2025-64100
mediumpriority · track · 0EPSS 0.003 · 22 %ileEUUSEPSS · scored 2026-10-27
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
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
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weaknesses
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affected products (4)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-2hvh-cw5c-8q8qCKAN vulnerable to fixed session IDs2025-10-29ghsa · osvUS
### 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)
- PYSEC-2026-1246CKAN vulnerable to fixed session IDs2026-07-07vendor · osvUS
### 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)
also known as (6)
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sources
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references (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-64100cnnvd
- https://github.com/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5cnnvd
- https://github.com/ckan/ckan/releasesPatchcnnvd
- https://github.com/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8qcnnvd
- https://github.com/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5enisa_euvd
- https://github.com/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8qenisa_euvd
- https://github.com/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5nvd
- https://github.com/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8qnvd
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