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

Medium 6.6 Published 13 May 2026 Updated 14 May 2026

Attackers can intercept SMTP traffic to steal credentials and emails due to missing certificate validation in CKAN.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-41132?

CVE-2026-41132 is a medium-severity vulnerability in ckan, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-295

Which versions are affected by CVE-2026-41132?

5 open source packages ship an affected version, including ckan. It affects 1 product.

Package	Affected	Fixed in
`ckan` PyPI	All versions	`2.10.10, 2.11.5`
`ckan` PyPI	All versions	`2.10.10`
`ckan` PyPI	All versions	`2.10.10`
`ckan` PyPI	From `2.11.0`	`2.11.5`
`ckan` PyPI	From `2.11.0`	`2.11.5`

Products include Okfn Ckan.

How do I fix CVE-2026-41132?

Upgrade ckan to a fixed version for your release line: 2.10.10 or 2.11.5.

Is CVE-2026-41132 being exploited?

There is no known exploitation of CVE-2026-41132 in the wild and no public exploit code.

Sources

Also known as GHSA-mpfm-fpgx-647q, PYSEC-2026-2419.