Low severity2.2NVD Advisory· Published Aug 5, 2026· Updated Sep 1, 2026

CVE-2026-18839

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Popt Library/popt libraryllm-fuzzy

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/CVE-2026-18839nvd
bugzilla.redhat.com/show_bug.cginvd

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