CVE-2025-64100

mediumpriority · track · 0EPSS 0.003 · 22 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.30% (22nd) EPSS
CVSS 6.1 · medium
Is it mine?
4 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · osv

EPSS · 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

01

cvss

Technical severity, 0–10. One row per scoring source.

6.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:Nsecondary · ENISA EU
v3.16.1mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:Nsecondary · security-advisories@github.comexploitability 1.6 · impact 4
v3.16.1mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:Nsecondary · OSV
v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (4)

Products and version ranges known to be affected.

05

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)

06

also known as (6)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2025-10-29modified 2026-10-19
08

references (8)

External citations — patches, advisories, analysis.

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