nnn 5.2 Batch Copy/Move Workflow path os command injection

Summaryinfo

A vulnerability classified as problematic has been found in nnn 5.2. Impacted is an unknown function of the component Batch Copy/Move Workflow. The manipulation of the argument path leads to os command injection. This vulnerability is referenced as CVE-2026-65611. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in nnn 5.2 and classified as problematic. This issue affects some unknown processing of the component Batch Copy/Move Workflow. The manipulation of the argument path with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

nnn does not sanitize the path variable. An attacker can create a directory on a shared filesystem, removable media, or inside an extracted archive whose name contains a single quote followed by shell syntax. If the victim enters that directory in nnn and uses the batch copy or move workflow, the crafted directory name 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.

It is possible to read the advisory at cert.pl. The identification of this vulnerability is CVE-2026-65611 since 07/22/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-2026-97594980). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• nnn

Version

• 5.2

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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