CVE-2026-110036 Device-mapper-persistent-data: device-mapper-persistent-data: denial of service via crafted block indices
A local attacker can cause a denial of service by triggering an arithmetic error in device-mapper-persistent-data via crafted block indices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-110036?
CVE-2026-110036 is a low-severity vulnerability in Red Hat Enterprise Linux 10, published on 13 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A flaw was found in device-mapper-persistent-data. A local attacker can cause a Denial of Service (DoS) by inducing a user or system tool to process crafted device metadata containing an excessively large block index. An arithmetic error in the synchronous block reading logic causes the application to panic and unexpectedly terminate.
Weakness: CWE-190
Which versions are affected by CVE-2026-110036?
How do I fix CVE-2026-110036?
No fix has been published for CVE-2026-110036 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-110036 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110036 exists.
Sources
Also known as GHSA-ch68-jhcq-2942.