---
id: CVE-2026-86721
title: >-
  AVideo through commit c3edcc274c contains an authorization bypass
  vulnerability where a session cookie named 'key' with value 'value' overrides
  the $_REQUEST['key'] parameter in saveLive.php and related endpoints
summary: >-
  AVideo through commit c3edcc274c contains an authorization bypass
  vulnerability where a session cookie named 'key' with value 'value' overrides
  the $_REQUEST['key'] parameter in saveLive.php and related endpoints.
  Attackers can publish t…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-287
vendor: WWBN
product: AVideo
affected:
  - AVideo <= c3edcc274c389816d434acadac07ee78eaf330c1
published: '2026-09-08'
updated: '2026-09-19'
sourceUpdated: '2026-09-19T15:17:06.637'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86721'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-5664-h9h4-3gwc'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/avideo-through-c3edcc274c-authorization-bypass-via-session-cookie
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00495
epssPercentile: 0.39941
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-18T17:42:47.158475Z'
ingestedAt: '2026-09-08T15:33:26.987Z'
---

## Overview

AVideo through commit c3edcc274c contains an authorization bypass vulnerability where a session cookie named 'key' with value 'value' overrides the $_REQUEST['key'] parameter in saveLive.php and related endpoints. Attackers can publish to any user's RTMP stream without authentication by using the known constant stream key value to hijack live broadcasts.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.