PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-48055 truelockmc CVE debrief

Streambert 2.4.0 and prior versions contain a high-severity Zip Slip vulnerability in subtitle extraction logic, allowing path traversal and arbitrary file writes. The application fails to sanitize archive entry filenames during extraction, enabling a malicious archive to escape temporary directory boundaries and write payloads anywhere on the host filesystem with current write permissions. This issue is fixed in version 2.5.0.

Vendor
truelockmc
Product
streambert
CVSS
CRITICAL 10
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Users of Streambert versions 2.4.0 and prior should update to version 2.5.0 to mitigate this vulnerability. System administrators and security teams responsible for managing Electron desktop applications should prioritize this update.

Technical summary

The Streambert application, versions 2.4.0 and prior, is vulnerable to a Zip Slip attack. During subtitle extraction, the application downloads a ZIP archive and extracts its entries without sanitizing filenames. This allows a malicious ZIP archive to perform path traversal, enabling the writing of arbitrary files to the host filesystem. The vulnerability is characterized by the following: - CVSS Score: 10 - CVSS Severity: CRITICAL - CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H - CWE: CWE-20, CWE-22 The vulnerability has been addressed in Streambert version 2.5.0.

Defensive priority

High

Recommended defensive actions

  • Update Streambert to version 2.5.0 or later
  • Review and restrict write permissions for the application's temporary directories
  • Implement additional monitoring for suspicious file system modifications by the application
  • Verify the integrity of downloaded ZIP archives before extraction
  • Perform a thorough review of the application's file handling and extraction logic
  • Conduct a security audit to identify potential vulnerabilities in the application's codebase
  • Track and verify changes to the application's temporary directories and file system interactions

Evidence notes

The CVE record was published on 2026-06-17T13:20:42.257Z and was last modified on 2026-06-17T16:26:02.190Z. The NVD entry is currently Deferred. The vulnerability was identified in Streambert versions 2.4.0 and prior. The fix is included in version 2.5.0.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48055 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48055

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-48055 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48055

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.