CVE-2025-65781 Denial of service in n/a
Attackers can cause denial of service and potential identity spoofing by sending non-empty bearer tokens to the attachment upload API.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-65781?
CVE-2025-65781 is a high-severity denial of service vulnerability in n/a, published on 15 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Attachment upload API treats the Authorization bearer value as a userId and enters a non-terminating body-handling branch for any non-empty bearer token, enabling trivial application-layer DoS and latent identity-spoofing.
Which versions are affected by CVE-2025-65781?
It affects 1 product.
Products include Wekan Project Wekan.
How do I fix CVE-2025-65781?
No fix has been published for CVE-2025-65781 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-65781 being exploited?
There is no known exploitation of CVE-2025-65781 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2026-30843 Wekan has Cross-Board IDOR in Custom Fields Update Endpoints
- CVE-2026-30844 Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading
- CVE-2026-30847 Wekan Credential Leak via notificationUsers Publication Exposes Password Hashes and Session Tokens
- CVE-2025-65780 Missing authorization in n/a
- CVE-2026-30846 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication
Sources
Also known as GHSA-j27j-25gc-gv9v.