# CVE-2026-2205: WeKan Meteor Publication cards.js CardPubSubBleed information disclosure

> Remote attackers can exploit a Meteor publication handler flaw in WeKan to disclose sensitive card information.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-xvv7-73jx-5wcg

## What is CVE-2026-2205?

CVE-2026-2205 is a medium-severity vulnerability in WeKan, published on 8 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was identified in WeKan up to 8.20. This affects an unknown part of the file server/publications/cards.js of the component Meteor Publication Handler. Such manipulation leads to information disclosure. The attack may be performed from remote. Upgrading to version 8.21 is able to mitigate this issue. The name of the patch is 0f5a9c38778ca550cbab6c5093470e1e90cb837f. Upgrading the affected component is advised.

Weakness: CWE-284 (Improper Access Control), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-2205?

It affects 1 product.


Products: Wekan Project Wekan.

## How do I fix CVE-2026-2205?

No fix has been published for CVE-2026-2205 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2205 being exploited?

There is no known exploitation of CVE-2026-2205 in the wild and no public exploit code.

## Other vulnerabilities in WeKan

- [CVE-2026-30843](https://insights.sbomify.com/CVE-2026-30843/): Wekan has Cross-Board IDOR in Custom Fields Update Endpoints (critical 9.3)
- [CVE-2026-30844](https://insights.sbomify.com/CVE-2026-30844/): Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading (critical 9.3)
- [CVE-2026-30847](https://insights.sbomify.com/CVE-2026-30847/): Wekan Credential Leak via notificationUsers Publication Exposes Password Hashes and Session Tokens (critical 9.3)
- [CVE-2025-65780](https://insights.sbomify.com/CVE-2025-65780/): Missing authorization in n/a (high 8.8)
- [CVE-2026-30846](https://insights.sbomify.com/CVE-2026-30846/): Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2205 and fix it if it is affected.

What it is: CVE-2026-2205 is a medium-severity vulnerability in WeKan, published on 8 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-2205 in the wild and no public exploit code.

Affected product: WeKan. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-2205/ (Markdown: https://insights.sbomify.com/CVE-2026-2205/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2205
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2205
- OSV: https://osv.dev/vulnerability/CVE-2026-2205

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2205/
Summaries are generated and may contain mistakes; the official description above is the record.