CVE-2026-35505 OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime
An unauthenticated remote attacker can cause a denial of service by sending crafted requests that leak memory, eventually crashing the service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-35505?
CVE-2026-35505 is a high-severity denial of service vulnerability in OFFIS DICOM DCMTK Toolkit, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unauthenticated remote attacker can repeatedly send crafted connection requests to leak memory. In single-process deployments the memory grows until the service is killed and the port stops responding until restart.
Weakness: CWE-401
Which versions are affected by CVE-2026-35505?
How do I fix CVE-2026-35505?
Apply the vendor's patch.
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-2026-35505 being exploited?
There is no known exploitation of CVE-2026-35505 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-35505, GHSA-p8qm-mxfj-7vc2, UBUNTU-CVE-2026-35505.