Vulnerability · Published May 13, 2026 · Assigned by GitHub_M

CVE-2026-41132CKAN: No certificate validation on STMP connection

Medium 6.6

In plain English

A medium-severity improper certificate validation in ckan from ckan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.6Medium

Exploit odds (30 days)0.2%top 90.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.10 and 2.11.5, the configured SMTP server may be spoofed with any certificate (e.g. self-signed), leaving credentials and all emails sent open to MITM attacks. This vulnerability is fixed in 2.10.10 and 2.11.5.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	ckan	2.11.5	GHSA-mpfm-fpgx-647q
PyPI	ckan	2.10.10	GHSA-mpfm-fpgx-647q
PyPI	ckan	2.10.10, 2.11.5	PYSEC-2026-2419

Affected products (as reported)

Vendor	Product	Versions
ckan	ckan	>= 2.11.0, < 2.11.5< 2.10.10

Weakness: CWE-295 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

References

https://github.com/ckan/ckan/security/advisories/GHSA-mpfm-fpgx-647q x_refsource_CONFIRM