CVE-2026-18839
Low
Description
An integer underflow was found in the popt library when formatting help text for option tables that exceed the terminal width. A local user who can cause an application to print help under those conditions may cause that application to crash or fail to display help, resulting in a denial of service of the affected application.
SeverityLow
CVSS2.2
Exploit probability—
Product
Rpm-software-management Popt
PublishedAug 5, 2026
First seenAug 5, 2026
Weakness typeCWE-191CWE-191
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rpm-software-management popt | 1.13 | — |
| Red Hat Red Hat Hardened Images | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
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