🛡️ CVE-2025-64100 — ckan

🟡 CVSS 6.1 — Medium ✅ No Known Exploit CWE-384 NVD
6.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

[https://en.wikipedia.org/wiki/Session_fixation](https://en.wikipedia.org/wiki/Session_fixation)

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2025-64100 is classified as CWE-384: Session Fixation. A session identifier is not renewed at login, so an identifier planted beforehand becomes an authenticated session.

Affected software

CVE-2025-64100 is recorded against 2 packages.

  • ckan (from 2.11.0 up to 2.11.4)
  • unknown

Timeline and source

Published on 29 October 2025 and last revised on 7 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)

Details

Severity Medium
CVSS Score 6.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE CWE-384
Public Exploit ✅ No
Source NVD
Published 2025-10-29
Updated 2026-08-12
Modified 2026-07-07
Fix URL N/A

Affected Packages

Software From version Fixed in
ckan 2.11.0 2.11.4
unknown — —

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