CVE-2026-16646 PanKM - Critical - Unsupported - SA-CONTRIB-2026-083
The unsupported Drupal PanKM module lacks proper authorization checks, allowing attackers to bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-16646?
CVE-2026-16646 is a medium-severity missing authorization vulnerability in Drupal PanKM, published on 25 Aug 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Vulnerability in Drupal PanKM. This issue affects PanKM versions: *.*.
Weakness: CWE-306
Which versions are affected by CVE-2026-16646?
How do I fix CVE-2026-16646?
No fix has been published for CVE-2026-16646 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-16646 being exploited?
There is no known exploitation of CVE-2026-16646 in the wild and no public exploit code.
Sources
Also known as GHSA-r78p-m3m3-cx34.