CVE-2026-18739
Low
Description
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.
SeverityLow
CVSS2.5
Exploit probability—
Product
Rpm-software-management Popt
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rpm-software-management popt | 1.1.1 | — |
| 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 6 | 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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