FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

popt -- Out-of-bounds Write

Affected packages
		popt	<=	1.19_2,1

Details

VuXML ID	0142953c-b716-11f1-a70f-00a0980083d7
Discovery	2026-08-04
Entry	2026-09-23

https://access.redhat.com/errata/RHSA-2026:56984 reports:

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.

[source]

References

CVE Name	CVE-2026-18739
URL	https://cveawg.mitre.org/api/cve/CVE-2026-18739