CVE-2026-27732: Wwbn/avideo AVideo Has Authenticated Server-Side Request Vulnerability

HIGH
Advisory Identifier: GHSA-h39h-7cvg-q7j6
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CVSS 8.1
CWE-918
Published
Advisory Summary

CVE-2026-27732 is a HIGH (CVSS 8.1) avideo has authenticated server-side request vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Wwbn/avideo libraries in the Packagist ecosystem. The issue involves avideo has authenticated server-side request forgery via downloadurl in avideoencoder.json.php. Remediation is available by upgrading affected packages to version 22.0.

CVE-2026-27732 at a Glance

CVE Identifier CVE-2026-27732
GHSA Identifier GHSA-h39h-7cvg-q7j6
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Wwbn/avideo
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-27732

To remediate this vulnerability, upgrade all affected Wwbn/avideo dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

wwbn/avideo fixed: 22.0 
Upgrade wwbn/avideo to 22.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for wwbn/avideo

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-27732, inspect your project dependencies for Wwbn/avideo:

inspect dependencies for wwbn/avideo

Analyze the terminal output to locate any version of Wwbn/avideo in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 22.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Wwbn/avideo, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Vulnerability Type Authenticated Server-Side Request Forgery (SSRF) ### Affected Product/Versions AVideo versions prior to 22 (tested on AVideo 21.x). ### Root Cause Summary The `aVideoEncoder.json.php` API endpoint accepts a `downloadURL` parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). ### Impact Summary An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. ### Resolution/Fix This issue has been fixed in AVideo version 22. Users should upgrade to version 22.0 as soon as possible. ### Credits/Acknowledgement Thanks to Arkadiusz Marta for responsibly reporting this issue. - GitHub Profile: https://github.com/arkmarta/

CVE-2026-27732 Affected Wwbn/avideo Versions

1 component(s)
Fixed Versions:
22.0
Product / Package Ecosystem Affected Versions Fixed Version
wwbn/avideo
 Packagist
< 22.0
22.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/WWBN/AVideo/security/advisories/GHSA-h39h-7cvg-q7j6
NVD — CVE-2026-27732 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27732
Security Fix Commit FIX COMMIT
https://github.com/WWBN/AVideo/commit/384ef2548093f4cbb1bfac00f1f429fe57fab853
Wwbn/avideo Source Repository REPOSITORY
https://github.com/WWBN/AVideo
Wwbn/avideo Release RELEASE
https://github.com/WWBN/AVideo/releases/tag/22.0

Frequently Asked Questions

What is CVE-2026-27732?
CVE-2026-27732 is a security vulnerability in Wwbn/avideo involving AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php under CWE-918: Server-Side Request Forgery (SSRF).
Which Wwbn/avideo versions are affected?
Affected versions include releases prior to 22.0 across affected packages: wwbn/avideo.
What version fixes CVE-2026-27732?
Upgrading to 22.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is wwbn/avideo affected?
Yes, wwbn/avideo is affected in releases prior to 22.0. Upgrade your dependency to 22.0 or later.
What is the CVSS score of CVE-2026-27732?
CVE-2026-27732 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-27732?
CVE-2026-27732 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check Packagist dependencies for CVE-2026-27732?
Run the dependency tree command: 'inspect dependencies for wwbn/avideo'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h39h-7cvg-q7j6",
  "modified" : "2026-09-02T13:27:47Z",
  "published" : "2026-02-25T18:57:05Z",
  "aliases" : [ "CVE-2026-27732" ],
  "summary" : "AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php",
  "details" : "### Vulnerability Type\nAuthenticated Server-Side Request Forgery (SSRF)\n\n### Affected Product/Versions\nAVideo versions prior to 22 (tested on AVideo 21.x).\n\n### Root Cause Summary\nThe `aVideoEncoder.json.php` API endpoint accepts a `downloadURL` parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints).\n\n### Impact Summary\nAn authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment.\n\n### Resolution/Fix\nThis issue has been fixed in AVideo version 22. Users should upgrade to version 22.0 as soon as possible.\n\n### Credits/Acknowledgement\nThanks to Arkadiusz Marta for responsibly reporting this issue.\n- GitHub Profile: https://github.com/arkmarta/",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "wwbn/avideo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "22.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 21.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/security/advisories/GHSA-h39h-7cvg-q7j6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-27732"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/commit/384ef2548093f4cbb1bfac00f1f429fe57fab853"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/WWBN/AVideo"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/releases/tag/22.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-25T18:57:05Z",
    "nvd_published_at" : "2026-02-24T15:21:39Z"
  }
}