CVE-2026-30847: Wekan is an open source kanban tool built with Meteor

Routine

MEDIUM 6.5UPGRADE

CVE-2026-30847 is a medium-severity flaw (CVSS 6.5) affecting wekan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the notificationUsers publication in Wekan publishes user documents with no field filtering, causing the ReactiveCache.getUsers() call to return all fields including highly sensitive data such as bcrypt password hashes, active session login tokens, email verification tokens, full email addresses, and any stored OAuth tokens. Unlike Meteor's default auto-public

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-200, CWE-285
Published	2026-03-06
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: wekan project

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

Am I affected?

Timeline

2026-03-06 20:16 UTCPublished CVE record published
2026-06-17 10:33 UTCUpdated Record last modified

wekan project wekan UPGRADE

Affected: >= 8.31 and < 8.33

Fixed in: 8.33

Safe to downgrade to: a release before 8.31

1. Check installed version

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

2. UPGRADE to 8.33 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wekan

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 8.31 (Debian / Ubuntu)

apt-cache madison wekan sudo apt install wekan=<VERSION_BEFORE_8.31> sudo apt-mark hold wekan

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

dnf --showduplicates list wekan sudo dnf downgrade wekan-<VERSION_BEFORE_8.31> sudo dnf versionlock add wekan

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.

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-2026-30847?

wekan: upgrade to 8.33. Exact commands for each OS are on this page.

Is CVE-2026-30847 being exploited?

CVE-2026-30847 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-2026-30847 affect?

CVE-2026-30847 affects wekan. Severity is medium (CVSS 6.5). Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the notificationUsers publication in Wekan publishes user documents with no field filtering, causing the ReactiveCache.getUsers() call to return all fie

How urgent is CVE-2026-30847?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2025-65781 HIGH 8.2 UPGRADE An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16
CVE-2025-65780 HIGH 8.8 UPGRADE An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16
CVE-2025-65779 HIGH 7.5 UPGRADE An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16
CVE-2025-65778 HIGH 8.1 UPGRADE An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16
CVE-2025-65782 MEDIUM 6.5 UPGRADE An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16

References

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