What is CVE-2026-52890?

CVE-2026-52890 is a high-severity vulnerability in Wekan, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-07-15.

How severe is CVE-2026-52890?

High severity. CVSS v3 base score is 7.1 out of 10.

Path Traversal in Wekan

CVE-2026-52890

Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.or…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L.

Affected products

Wekan — versions < 9.31

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-52890?: CVE-2026-52890 is a high-severity vulnerability in Wekan, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-07-15.
How severe is CVE-2026-52890?: High severity. CVSS v3 base score is 7.1 out of 10.