CKAN vulnerable to fixed session IDs
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
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | ckan | >= 2.10.0, < 2.10.9, >= 2.11.0, < 2.11.4 | 2.10.9, 2.11.4 |
References
- https://github.com/ckan/ckan/security/advisories/GHSA-2hvh-cw5c-8q8q
- https://nvd.nist.gov/vuln/detail/CVE-2025-64100
- https://github.com/ckan/ckan/commit/c2fe437f88be850a6edf7a32470772428819fab5
- https://github.com/ckan/ckan
- https://pypi.org/project/ckan
- https://github.com/advisories/GHSA-2hvh-cw5c-8q8q
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N- Weakness (CWE)
CWE-384- Platform
- Python (PyPI)
- Package
ckan- Disclosed
- 29.10.2025
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1246 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-2hvh-cw5c-8q8q - CC BY 4.0
Vulnerability history: ckan
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 15
- First → latest
- 12.2021 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Medium 11
Disclosures per year
- 2021: 1
- 2022: 1
- 2023: 2
- 2024: 4
- 2025: 3
- 2026: 4
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CKAN vulnerable to fixed session IDs this entry
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