Vulnerability · Published Aug 18, 2026 · Assigned by GitHub_M

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

High 8.3

In plain English

A high-severity improper input validation in streambert from truelockmc. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)8.3High

Exploit odds (30 days)0.4%top 64.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
truelockmc	streambert	< 2.6.0

Weakness: CWE-20, CWE-749 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

References

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