# CVE-2026-45058: electerm: Import unsafe bookmark data could lead to unsafe operation when click local type bookmark

> Attackers can execute arbitrary code by injecting malicious fields into imported bookmarks or synced configurations in the electerm terminal client.

- **Severity:** Critical 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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 28 May 2026
- **Updated:** 30 May 2026
- **Also known as:** GHSA-jgg9-rw32-44pj

## What is CVE-2026-45058?

CVE-2026-45058 is a critical code injection vulnerability in electerm, published on 28 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-915 (Improperly Controlled Modification of Dynamically-Determined Object Attributes), CWE-494 (Download of Code Without Integrity Check), CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2026-45058?

2 open source packages ship an affected version, including electerm.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `electerm` | npm | All versions to 3.8.8 | None |
| `electerm` | npm | All versions to 3.8.8 | None |

## How do I fix CVE-2026-45058?

No fix has been published for CVE-2026-45058 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-45058 being exploited?

There is no known exploitation of CVE-2026-45058 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-45058 and fix it if it is affected.

What it is: CVE-2026-45058 is a critical code injection vulnerability in electerm, published on 28 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-45058 in the wild and no public exploit code.

Affected packages and fixed versions:
- electerm (npm): affected all versions up to 3.8.8; no fix listed
- electerm (npm): affected all versions up to 3.8.8; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-45058/ (Markdown: https://insights.sbomify.com/CVE-2026-45058/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-45058
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-45058
- OSV: https://osv.dev/vulnerability/CVE-2026-45058

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-45058/
Summaries are generated and may contain mistakes; the official description above is the record.