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GHSA-mpm8-cx2p-626q

CriticalCVSS 9.6 / 10
Published May 8, 2026·Last modified May 13, 2026
Affected Components(0)

No affected components available

Description

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
Risk Scores
Base Score
9.6

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
8.8

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
0.36%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Critical severity
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