CVE-2026-42031: CKAN is an open-source DMS (data management system) for powering data hubs and data portals

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-42031 is a critical-severity flaw (CVSS 9.8) affecting ckan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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, a vulnerability in datastore_search_sql allowed attackers to inject SQL in order to gain access to private resources and PostgreSQL system information This vulnerability is fixed in 2.10.10 and 2.11.5.

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-05-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: okfn

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-13 19:17 UTCPublished CVE record published
2026-06-17 10:47 UTCUpdated Record last modified

okfn ckan UPGRADE

Affected: < 2.10.10 · >= 2.11.0 and < 2.11.5

Fixed in: 2.10.10, 2.11.5

Safe to downgrade to: a release before 2.11.0

1. Check installed version

apt-cache policy ckan || rpm -q ckan || ckan --version

2. UPGRADE to 2.10.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ckan

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ckan

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.11.0 (Debian / Ubuntu)

apt-cache madison ckan sudo apt install ckan=<VERSION_BEFORE_2.11.0> sudo apt-mark hold ckan

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ckan sudo dnf downgrade ckan-<VERSION_BEFORE_2.11.0> sudo dnf versionlock add ckan

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Python (pip) · ckan · FIXED · 2.10.10 · vulnerable: < 2.10.10 · source

pip install --upgrade "ckan>=2.10.10" pip show ckan

Fedora 46 · proftpd · FIXED · 1.3.9e-1.fc46 · FEDORA-2026-fc0d87d66e · source

sudo dnf upgrade --advisory=FEDORA-2026-fc0d87d66e

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: ddrvahandzo90-hue/CVE-2026-42031-SQL-Injection-Scanner (1 stars)
Nuclei scan template: CKAN DataStore SQL Search - SQL Injection

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-42031?

ckan: upgrade to 2.10.10, 2.11.5. Exact commands for each OS are on this page.

Is CVE-2026-42031 being exploited?

CVE-2026-42031 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-42031 affect?

CVE-2026-42031 affects ckan. Severity is critical (CVSS 9.8). 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, a vulnerability in datastore_search_sql allowed attackers to inject SQL in order to gain access to private resources a

How urgent is CVE-2026-42031?

Priority 62/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

PostgreSQL vulnerabilities

Related CVEs

CVE-2026-42032 CRITICAL 9.1 UPGRADE CKAN is an open-source DMS (data management system) for powering data hubs and data portals
CVE-2026-41255 MEDIUM 6.1 UPGRADE CKAN is an open-source DMS (data management system) for powering data hubs and data portals
CVE-2026-41132 HIGH 7.4 UPGRADE CKAN is an open-source DMS (data management system) for powering data hubs and data portals

References

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