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

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

- **Severity:** Medium 6.6 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 May 2026
- **Updated:** 14 May 2026
- **Also known as:** GHSA-mpfm-fpgx-647q, PYSEC-2026-2419

## 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 (Improper Certificate Validation)

## Which versions are affected by CVE-2026-41132?

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


| Package | Ecosystem | 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: 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.

## Other vulnerabilities in ckan

- [CVE-2023-32321](https://insights.sbomify.com/CVE-2023-32321/): CKAN remote code execution and private information access via crafted resource ids (critical 9.8)
- [CVE-2023-32696](https://insights.sbomify.com/CVE-2023-32696/): Excessive permissions for ckan user (high 8.8)
- [CVE-2022-43685](https://insights.sbomify.com/CVE-2022-43685/): CKAN contains Improper Authentication leading to account takeover (high 8.8)
- [CVE-2023-22746](https://insights.sbomify.com/CVE-2023-22746/): CKAN is vulnerable to session secret shared across instances using Docker images (high 8.6)
- [CVE-2026-42031](https://insights.sbomify.com/CVE-2026-42031/): CKAN: Unauthenticated SQL Injection and Authorization Bypass in `datastore_search_sql` (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41132 and fix it if it is affected.

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

Affected packages and fixed versions:
- ckan (PyPI): affected all versions; fixed in 2.10.10, 2.11.5
- ckan (PyPI): affected all versions; fixed in 2.10.10
- ckan (PyPI): affected all versions; fixed in 2.10.10
- ckan (PyPI): affected from 2.11.0; fixed in 2.11.5
- ckan (PyPI): affected from 2.11.0; fixed in 2.11.5

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-41132/ (Markdown: https://insights.sbomify.com/CVE-2026-41132/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41132
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41132
- OSV: https://osv.dev/vulnerability/CVE-2026-41132

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-41132/
Summaries are generated and may contain mistakes; the official description above is the record.