CVE-2026-18739

A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data.

CVSS v3 2.5 LOW

2.5^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.0 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:56984
https://access.redhat.com/security/cve/CVE-2026-18739
https://bugzilla.redhat.com/show_bug.cgi?id=2510737

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-04 06:16

Updated : 2026-08-31 18:17

NVD link : CVE-2026-18739

Mitre link : CVE-2026-18739

CVE.ORG link : CVE-2026-18739

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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