to that file and opens it with preview-tabbed, the filename is embedded into the generated shell command and the injected payload executes with the privileges of the nnn process.
Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Link | Providers |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-65609 |
|
Thu, 20 Aug 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 20 Aug 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nnn
Nnn nnn |
|
| Vendors & Products |
Nnn
Nnn nnn |
Wed, 19 Aug 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | nnn does not sanitize the filename variable. An attacker can place a file with a crafted name on a shared filesystem, removable media, or inside an extracted archive whose name contains a single quote followed by shell syntax. If the victim navigates to that file and opens it with preview-tabbed, the filename is embedded into the generated shell command and the injected payload executes with the privileges of the nnn process. Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable. | |
| Title | Shell Command Injection in nnn | |
| Weaknesses | CWE-78 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-08-20T15:57:11.651Z
Reserved: 2026-07-22T10:59:31.847Z
Link: CVE-2026-65612
Updated: 2026-08-20T15:53:30.995Z
Status : Deferred
Published: 2026-08-19T14:17:38.523
Modified: 2026-08-28T15:26:19.533
Link: CVE-2026-65612
No data.
OpenCVE Enrichment
Updated: 2026-08-20T17:30:03Z