Security Digest · Vulnerability record
CVE-2026-45058: Electerm: Importing unsafe bookmark data could lead to unsafe operation when clicking local type bookmark
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client.
CVSS 9.4 Critical EPSS 0.3% · p21
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.3%, percentile 21: FIRST’s model estimates a 0.3% chance of exploitation activity in the next 30 days, higher than 21% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Only applies if your dependency tree includes
electerm(npm) <= 3.8.8, no fixed version listed. Check your lockfile, including transitive dependencies.
What it is
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. In 3.8.8 and earlier, there is persistent local-pty code execution via imported bookmarks or compromised sync targets. Affects users who import bookmark JSON files or who have electerm sync configured (gist/WebDAV). The attacker can inject exec fields or global config to cause remote code to run when a bookmark is opened or when sync is applied.
From the GitHub advisory
Impact Persistent local-pty code execution via imported bookmarks or compromised sync targets. Affects users who import bookmark JSON files or who have electerm sync configured (gist/WebDAV). The attacker can inject exec fields or global config to cause remote code to run when a bookmark is opened or when sync is applied.
Patches
Not yet
Workarounds - Do not import unsafe data
References - Report / credit: https://github.com/Curly-Haired-Baboon - Electerm releases: https://github.com/electerm/electerm/releases
Weakness type: CWE-94, CWE-345, CWE-494, CWE-915.
Product: electerm (npm) · Assigned by: GitHub_M · Published: 2026-05-28
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| npm | electerm | <= 3.8.8 | none listed |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| electerm | electerm | <= 3.8.8 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| GitHub | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: active
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.30% probability of exploitation activity in the next 30 days; percentile 21.
Timeline
- — GitHub-reviewed advisory GHSA-jgg9-rw32-44pj published (critical)
- — CVE record published by GitHub_M
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-jgg9-rw32-44pj github.com
- CVE.org record CVE-2026-45058 cve.org
- NVD entry CVE-2026-45058 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com