CVE-2026-97222 Gnumeric: gnumeric: heap use-after-free when opening a malformed workbook
An attacker can cause a denial of service by tricking a user into opening a malformed Gnumeric workbook that triggers a heap use-after-free crash.
- 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
- Available
What is CVE-2026-97222?
CVE-2026-97222 is a medium-severity use after free vulnerability in GNOME Gnumeric, published on 25 Sep 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 heap use-after-free flaw was found in Gnumeric. When a user opens a crafted Gnumeric workbook containing a malformed SheetObjectComponent element, the XML parser can dereference a freed sheet-object component, causing Gnumeric to crash.
Weakness: CWE-416
Which versions are affected by CVE-2026-97222?
Linux distribution packages (1)
gnumeric openSUSE:Tumbleweed | All versions | 1.12.62+8-1.1 |
How do I fix CVE-2026-97222?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-97222 being exploited?
There is no known exploitation of CVE-2026-97222 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-97222, GHSA-gx2p-wmmc-xm83, MGASA-2026-0501, UBUNTU-CVE-2026-97222, openSUSE-SU-2026:11919-1.