What’s Vulnerable › Vulnerabilities

CVE-2026-97222: Gnumeric: gnumeric: heap use-after-free when opening a malformed workbook

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-25 · updated 2026-09-30
• Weakness: CWE-416

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.

Affected products

• GNOME Gnumeric: from 1.11.0

References

• https://access.redhat.com/security/cve/CVE-2026-97222
• https://bugzilla.redhat.com/show_bug.cgi?id=2541397
• https://gitlab.gnome.org/GNOME/gnumeric/-/issues/897

Get alerted when CVE-2026-97222 or the next vulnerability affects your stack