# CVE-2026-52875 — truelockmc streambert

> As of 2026-08-18, CVE-2026-52875 is a High-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in truelockmc streambert, CVSS v4.0 8.4, EPSS 0.1% (4.2th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-52875 as of 2026-08-18; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-18

## What is CVE-2026-52875?

Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to 2.6.0, the perform-scheduled-backup IPC handler in src/ipc/storage.js takes settings.path from a renderer-supplied object and uses the resulting directory for fs.mkdirSync, fs.writeFileSync, fs.readdirSync, and fs.unlinkSync operations without checking that it is inside an authorized backup location. A compromised renderer can choose an absolute path or a relative traversal path to create directories and write a streambert-backup-[timestamp].json file containing renderer-controlled data. The pruning loop can also delete files in that directory whose names begin with streambert-backup- and end with .json. This vulnerability is fixed in 2.6.0.

The record classifies CVE-2026-52875 under weakness classes [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22), [CWE-73](https://intel.threadlinqs.com/cwe/CWE-73). 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 48 days ago.

## Severity and exploitation probability

- **CVSS v4.0 base score:** 8.4 — High (derived from score) (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 4.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-18

## Is CVE-2026-52875 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **truelockmc**: streambert

## How to fix CVE-2026-52875

No vendor patch reference has been recorded for CVE-2026-52875 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-52875

No threat campaign in the Threadlinqs corpus currently references CVE-2026-52875, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-08-19. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/truelockmc/streambert/security/advisories/GHSA-c64m-cx97-6rc9)

**Other references**

- [github.com](https://github.com/truelockmc/streambert/pull/149)
- [github.com (43566ed031183b046675761c9813c5379b619269)](http://github.com/truelockmc/streambert/commit/43566ed031183b046675761c9813c5379b619269)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-52875
Full detection coverage and IOCs for threats exploiting CVE-2026-52875 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp