CVE-2026-18739
Popt-devel: popt-static: off-by-one in poptstuffargs
- State
- Published
- Severity
- 2.5 Low
- Published
- Aug 4, 2026
- Updated
- Aug 31, 2026
- Reserved
- Aug 3, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 2.5 Low | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | redhat |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
poptrpm-software-management |
|
Red Hat Hardened ImagesRed Hat |
|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat |
References
- RHSA-2026:56984vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-18739vdb-entry
- RHBZ#2510737issue-tracking
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