Security readout for executives and security teams
Plain-English summary
Streambert before version 2.5.0 can let a compromised application window trigger local programs with Streambert’s privileges. This could enable data theft, system changes, or service disruption. The flaw is rated critical, but the supplied sources do not report active exploitation.
Executive priority
Treat remediation as urgent because successful exploitation could affect confidentiality, integrity, and availability with the application’s privileges. Upgrade affected installations promptly, prioritizing privileged or sensitive endpoints. Current evidence supports high technical impact but does not establish active exploitation.
Technical view
The run-download Electron IPC handler insufficiently validates supplied executable paths. A compromised renderer can cross the renderer-to-main-process trust boundary and execute arbitrary local binaries under the application’s privileges. The issue is classified as CWE-20 and CWE-749, carries CVSS 3.1 score 10.0, and is patched in version 2.5.0.
Likely exposure
Systems running Streambert versions earlier than 2.5.0 are affected. Practical exploitation requires control of, or compromise within, the renderer process. The supplied evidence does not identify how that prerequisite would be achieved or which operating systems are most exposed.
Exploitation context
This CVE is not listed in the supplied KEV data, and no provided source reports exploitation in the wild. Absence from KEV does not prove exploitation is impossible or absent.
Researcher notes
The central issue is inadequate executable-path validation in the run-download IPC handler. Analysis should distinguish the CVSS network vector from the stated prerequisite of a compromised renderer. The supplied bundle provides no initial renderer-compromise mechanism, proof of exploitation, affected-platform breakdown, or technical patch details beyond version 2.5.0 containing the fix.
Mitigation direction
- Upgrade Streambert to version 2.5.0 or later.
- Prioritize systems where Streambert handles sensitive data or runs with elevated privileges.
- If upgrading is delayed, consult the vendor advisory for any newly published interim guidance.
- Avoid running affected Streambert versions with unnecessary elevated privileges.
Validation and detection
- Inventory installed Streambert versions across managed endpoints.
- Confirm every installation reports version 2.5.0 or later.
- Verify deployment records show the updated release successfully installed.
- Review endpoint telemetry for unusual child processes launched by affected Streambert installations.
- Recheck the vendor advisory for updated exploitation or remediation information.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-749: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-48056 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96GitHub_MVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/truelockmc/streambert/security/advisories/GHSA-x267-77m6-qjc9CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/truelockmc/streambert/releases/tag/2.5.0CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Exposed Dangerous Method or Function
Exposed Dangerous Method or Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.