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

Quick assessment

Affected
GNOME Gnumeric
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Gnumeric 中发现了一个堆内存使用后释放（heap use-after-free）漏洞。当用户打开一个包含格式错误的 SheetObjectComponent 元素的恶意构造的 Gnumeric 工作簿时，XML 解析器可能会解除引用一个已释放的工作表对象组件，从而导致 Gnumeric 崩溃。

CVSS 5.5 · Medium EPSS 0.12% · P1
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I. Basic Information for CVE-2026-97222

Vulnerability Information
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Vulnerability Title
Gnumeric: gnumeric: heap use-after-free when opening a malformed workbook
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GNOME Gnumeric 1.11.0 ~ * -

II. Public POCs for CVE-2026-97222

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III. Intelligence Information for CVE-2026-97222

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Other References for CVE-2026-97222 (3)

Same Patch Batch · GNOME · 2026-09-25 · 6 CVEs total

CVE-2026-91837 7.8 HIGH Networkmanager-iodine: networkmanager-iodine: local privilege escalation to root via names
CVE-2026-91841 7.8 HIGH Networkmanager-vpnc: networkmanager-vpnc: incomplete fix for cve-2018-10900 allows root pr
CVE-2026-91838 7.8 HIGH Networkmanager-sstp: networkmanager-sstp: local privilege escalation to root via shell inj
CVE-2026-91840 7.8 HIGH Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline i
CVE-2026-91839 7.8 HIGH Networkmanager-fortisslvpn: networkmanager-fortisslvpn: local privilege escalation to root

IV. Related Vulnerabilities

Same vendor: GNOME
Same weakness: CWE-416

V. Comments for CVE-2026-97222

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