CVE-2026-43944 is a critical-severity improper input validation vulnerability in electerm (npm), affecting versions >= 3.0.6, < 3.8.8. It is fixed in 3.8.8.
Impact Arbitrary local code execution via deep links, CLI --opts, or crafted shortcuts. Affected users: electerm installs that accept protocol URLs or CLI options (affected versions listed in the original report). Exploit requires clicking a crafted electerm://... link or opening a crafted shortcut/command that launches electerm with attacker-controlled opts. Patches Fixed in version > 3.8.8 commits: https://github.com/electerm/electerm/commit/8a6a17951e96d715f5a231532bbd8303fe208700 https://github.com/electerm/electerm/commit/a79e06f4a1f0ac6376c3d2411ef4690fa0377742 https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507 Workarounds Disable or unregister electerm protocol handlers (Deep Link settings) and avoid clicking electerm:// links. Do not run electerm with untrusted --opts arguments or open .lnk / .desktop files from untrusted sources. Restrict which users can launch electerm on shared machines and avoid leaving electerm installed in locations reachable by other users. As a temporary measure, run electerm in a confined account or sandbox (non-admin user) to reduce impact. References Report / credit: https://github.com/Curly-Haired-Baboon Electerm releases: https://github.com/electerm/electerm/releases
The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths. Typical impact: varies by context: data corruption, logic bypass, or denial of service.
CVE-2026-43944 has a CVSS score of 9.6 (Critical). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (3.8.8). Upgrading removes the vulnerable code path.
npm
electerm (>= 3.0.6, < 3.8.8)electerm → 3.8.8 (npm)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter instead of chasing every advisory.
Kodem's Application Detection and Response identifies whether CVE-2026-43944 is reachable in your applications. Explore runtime application protection for your team.
See if CVE-2026-43944 is reachable in your applications. Get a demo
Already deployed Kodem? See CVE-2026-43944 in your environment →Upgrade electerm to 3.8.8 or later to resolve this vulnerability.
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CVE-2026-43944 is a critical-severity improper input validation vulnerability in electerm (npm), affecting versions >= 3.0.6, < 3.8.8. It is fixed in 3.8.8. The application does not adequately validate input before processing it, allowing unexpected values to reach sensitive code paths.
CVE-2026-43944 has a CVSS score of 9.6 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
electerm (npm) versions >= 3.0.6, < 3.8.8 is affected.
Yes. CVE-2026-43944 is fixed in 3.8.8. Upgrade to this version or later.
Whether CVE-2026-43944 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade electerm to 3.8.8 or later.