CVE-2026-48046Public exploitNetwork attack vector

Code execution via unvalidated auto-updater URL

Published Aug 11, 2026 · Updated Aug 11, 2026

Code download without integrity checks in truelockmc Streambert before 2.5.0 allows remote attackers to execute arbitrary binaries. The download-and-install-update handler in src/ipc/player.js passes a renderer-controlled URL into the download flow without validating its source, then spawns the downloaded file. Exploitation requires control of a renderer process, such as through renderer XSS or an untrusted external stream source, and runs the binary with the application's host privileges.

CVSS severity9.3
Critical
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code download without integrity checks in truelockmc Streambert before 2.5.0 allows remote attackers to execute arbitrary binaries. The download-and-install-update handler in src/ipc/player.js passes a renderer-controlled URL into the download flow without validating its source, then spawns the downloaded file. Exploitation requires control of a renderer process, such as through renderer XSS or an untrusted external stream source, and runs the binary with the application's host privileges.

The record

CVE
CVE-2026-48046
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
truelockmc
Product
Streambert
Classifications
CWE-494, T1105
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

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-494Download of Code Without Integrity Check
T1105Ingress Tool Transfer

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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