CVE-2026-65611

Code execution via unsanitized path interpolation

Published Aug 19, 2026 · Updated Aug 20, 2026

Command injection in nnn 5.2 allows attackers to execute shell commands via a crafted directory name during batch copy or move. The batch copy and move workflow embeds the current path variable into a generated shell command without neutralizing single quotes or other shell metacharacters from the directory name. Exploitation requires the victim to enter an attacker-controlled directory from a shared filesystem, removable media, or an extracted archive and then start the batch copy or move action, after which the injected command runs with the privileges of the nnn process.

CVSS severity5.1
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in nnn 5.2 allows attackers to execute shell commands via a crafted directory name during batch copy or move. The batch copy and move workflow embeds the current path variable into a generated shell command without neutralizing single quotes or other shell metacharacters from the directory name. Exploitation requires the victim to enter an attacker-controlled directory from a shared filesystem, removable media, or an extracted archive and then start the batch copy or move action, after which the injected command runs with the privileges of the nnn process.

The record

CVE
CVE-2026-65611
Published
Aug 19, 2026
Updated
Aug 20, 2026
Vendor
Arun Prakash Jana
Product
nnn
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Arun Prakash Jana · nnnversion=5.2

Published CVSS scores

5.1CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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