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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 19 Aug 2026 13:45:00 +0000

Type Values Removed Values Added
References

Wed, 05 Aug 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Popt-devel
Popt-devel popt-static
Vendors & Products Popt-devel
Popt-devel popt-static

Tue, 04 Aug 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift
CPEs cpe:/a:redhat:openshift:4
Vendors & Products Redhat openshift

Tue, 04 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4
Vendors & Products Redhat openshift

Tue, 04 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 04 Aug 2026 05:45:00 +0000

Type Values Removed Values Added
Title popt-devel: popt-static: Off-by-one in poptStuffArgs Popt-devel: popt-static: off-by-one in poptstuffargs
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
References

Tue, 04 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Title popt-devel: popt-static: Off-by-one in poptStuffArgs
Weaknesses CWE-787
References
Metrics threat_severity

None

cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L'}

threat_severity

Low


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-19T13:15:50.982Z

Reserved: 2026-08-03T20:48:59.224Z

Link: CVE-2026-18739

cve-icon Vulnrichment

Updated: 2026-08-04T13:44:44.652Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-04T06:16:30.330

Modified: 2026-08-19T14:17:29.227

Link: CVE-2026-18739

cve-icon Redhat

Severity : Low

Publid Date: 2026-08-03T18:46:11Z

Links: CVE-2026-18739 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T10:17:46Z

Weaknesses