CVE-2026-41500Network attack vector

Arbitrary command execution via unsanitized release name

Published May 8, 2026 · Updated May 8, 2026

Command injection in electerm before 3.3.8 allows remote attackers to execute arbitrary commands during global npm installation on macOS. The runMac() function in npm/install.js concatenates remote releaseInfo.name into an exec("open ...") shell command without validation. Exploitation requires attacker-controlled release metadata to reach a macOS host while the global npm installation workflow runs, granting command execution as that local user.

CVSS severity9.8
Critical
EPSS probability1.57%
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 electerm before 3.3.8 allows remote attackers to execute arbitrary commands during global npm installation on macOS. The runMac() function in npm/install.js concatenates remote releaseInfo.name into an exec("open ...") shell command without validation. Exploitation requires attacker-controlled release metadata to reach a macOS host while the global npm installation workflow runs, granting command execution as that local user.

The record

CVE
CVE-2026-41500
Published
May 8, 2026
Updated
May 8, 2026
Vendor
electerm
Product
electerm
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=< 3.3.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

electerm · electermversion=< 3.3.8

Published CVSS scores

9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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