CVE-2026-52876 (GCVE-0-2026-52876)

Vulnerability from cvelistv5 – Published: 2026-08-18 21:29 – Updated: 2026-08-18 21:29
VLAI
Title
Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback
Summary
Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-path-at-time IPC handler in src/ipc/player.js accepts a renderer-controlled filePath without validating its type or location. If the mpv or VLC launch attempts are skipped or fail, the handler passes filePath to Electron's shell.openPath. A compromised renderer can provide the path of a local executable, script, shortcut, or other file with an executing default handler, causing the operating system to launch it with the privileges of the StreamBERT process and enabling escape from the renderer sandbox. This issue is fixed in version 2.6.0.
Severity
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-20 - Improper Input Validation
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version CPE status
truelockmc streambert Affected: < 2.6.0
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "streambert",
          "vendor": "truelockmc",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.6.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-path-at-time IPC handler in src/ipc/player.js accepts a renderer-controlled filePath without validating its type or location. If the mpv or VLC launch attempts are skipped or fail, the handler passes filePath to Electron\u0027s shell.openPath. A compromised renderer can provide the path of a local executable, script, shortcut, or other file with an executing default handler, causing the operating system to launch it with the privileges of the StreamBERT process and enabling escape from the renderer sandbox. This issue is fixed in version 2.6.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20: Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T21:29:08.476Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/truelockmc/streambert/security/advisories/GHSA-85vf-2qwc-qpm4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/truelockmc/streambert/security/advisories/GHSA-85vf-2qwc-qpm4"
        },
        {
          "name": "https://github.com/truelockmc/streambert/pull/149",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/truelockmc/streambert/pull/149"
        },
        {
          "name": "https://github.com/truelockmc/streambert/commit/43566ed031183b046675761c9813c5379b619269",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/truelockmc/streambert/commit/43566ed031183b046675761c9813c5379b619269"
        },
        {
          "name": "https://github.com/truelockmc/streambert/releases/tag/2.6.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/truelockmc/streambert/releases/tag/2.6.0"
        }
      ],
      "source": {
        "advisory": "GHSA-85vf-2qwc-qpm4",
        "discovery": "UNKNOWN"
      },
      "title": "Streambert: Arbitrary File Execution via VLC/mpv Launcher Fallback"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-52876",
    "datePublished": "2026-08-18T21:29:08.476Z",
    "dateReserved": "2026-06-08T21:44:27.364Z",
    "dateUpdated": "2026-08-18T21:29:08.476Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-52876",
      "date": "2026-08-19",
      "epss": "0.00153",
      "percentile": "0.0495"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-52876\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-08-18T22:16:54.173\",\"lastModified\":\"2026-08-18T22:16:54.173\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Streambert is a cross-platform Electron Desktop App to stream and download video content. Prior to version 2.6.0, the open-path-at-time IPC handler in src/ipc/player.js accepts a renderer-controlled filePath without validating its type or location. If the mpv or VLC launch attempts are skipped or fail, the handler passes filePath to Electron\u0027s shell.openPath. A compromised renderer can provide the path of a local executable, script, shortcut, or other file with an executing default handler, causing the operating system to launch it with the privileges of the StreamBERT process and enabling escape from the renderer sandbox. This issue is fixed in version 2.6.0.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"truelockmc\",\"product\":\"streambert\",\"versions\":[{\"version\":\"\u003c 2.6.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.0,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"},{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://github.com/truelockmc/streambert/commit/43566ed031183b046675761c9813c5379b619269\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/truelockmc/streambert/pull/149\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/truelockmc/streambert/releases/tag/2.6.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/truelockmc/streambert/security/advisories/GHSA-85vf-2qwc-qpm4\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.