CVE-2026-48056Public exploitNetwork attack vector

Arbitrary binary execution via unvalidated IPC path

Published Aug 11, 2026 · Updated Aug 11, 2026

Arbitrary binary execution in Streambert before 2.5.0 allows remote attackers to execute local programs through the downloader IPC handler. The run-download handler in src/ipc/downloads.js passes the renderer-controlled binaryPath directly to Node.js spawn without validating its directory. A renderer compromise, such as XSS or remote feed injection, is required; the selected binary then runs with the desktop application's privileges.

CVSS severity10.0
Critical
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary binary execution in Streambert before 2.5.0 allows remote attackers to execute local programs through the downloader IPC handler. The run-download handler in src/ipc/downloads.js passes the renderer-controlled binaryPath directly to Node.js spawn without validating its directory. A renderer compromise, such as XSS or remote feed injection, is required; the selected binary then runs with the desktop application's privileges.

The record

CVE
CVE-2026-48056
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
truelockmc
Product
Streambert
Classifications
CWE-749, CWE-20, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

truelockmc · Streambertversion=< 2.5.0

Published CVSS scores

10.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-749Exposed Dangerous Method or Function
CWE-20Improper Input Validation
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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