{"cve":"CVE-2026-43941","nvd":{"published":"2026-05-08T04:16:23.260","modified":"2026-06-17T10:50:06.057","status":"Analyzed","description":"electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. In versions 3.8.15 and prior, Electerm's terminal hyperlink handler passes any URL clicked in the terminal directly to shell.openExternal without any protocol validation. An attacker who controls terminal output (e.g., via a malicious SSH server, compromised remote host, or malicious plugin rendering terminal content) can thus achieve arbitrary code execution or local file access on the victim's machine, requiring only that the victim clicks a displayed link. At time of publication, there are no publicly available patches.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","score":9.6},"cwes":["CWE-88","CWE-601"],"references":["https://github.com/electerm/electerm/security/advisories/GHSA-fwf6-j56g-m97c"],"products":["electerm_project:electerm"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-43941","score":0.00394,"percentile":0.33618,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fwf6-j56g-m97c","url":"https://osv.dev/vulnerability/GHSA-fwf6-j56g-m97c","summary":"Electerm has an unvalidated shell.openExternal that allows arbitrary protocol execution via terminal link click","modified":"2026-05-08T18:56:25.919291Z","packages":[{"ecosystem":"npm","name":"electerm","purl":"pkg:npm/electerm","ranges":["<=3.8.15"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}