Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
CKAN versions 2.10.0 to before 2.10.10, and 2.11.0 to before 2.11.5, are affected. An unauthenticated request to a protected endpoint can remove CSRF protection from that endpoint for the lifetime of the server process, which can then be combined with cross-site scripting to perform actions using other users' credentials. Upgrade to CKAN 2.10.10 or 2.11.5. The source gives few details on the exact attack conditions.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.1 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0012, the 2nd percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 13 May 2026, 19:17 UTC Confirmed by NVD
- 31 Oct 2026, 15:01 UTC First seen by agentprime
- 31 Oct 2026, 15:01 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-mcvf-jxcw-vj73
- OSV: GHSA-mcvf-jxcw-vj73
- github.com/ckan/ckan/security/advisories/GHSA-mcvf-jxcw-vj73
- nvd.nist.gov/vuln/detail/CVE-2026-41255
- docs.ckan.org/en/2.10/changelog.html#v-2-10-10-2026-04-29
- docs.ckan.org/en/2.11/changelog.html#v-2-11-5-2026-04-29
- github.com/Shirshaw64p/security-advisories/tree/main/CVE-2026-41255
- github.com/ckan/ckan