Description
Open edX Platform enables the authoring and delivery of online learning at any scale. Prior to commit 00b7c3c, the endpoint accepts user-supplied files[].url, performs a server-side fetch using "requests.get(url, allow_redirects=True)". The fetched bytes are then returned inside a ZIP response. This enables SSRF with response exfiltration. Redirect-following is enabled, and there is no timeout in the vulnerable fetch path. This issue has been patched via commit 00b7c3c.
Published: 2026-09-02
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability in the Open edX Platform Studio's video download endpoint allows a server‑side request forgery (SSRF) whereby an attacker can supply arbitrary URLs for the platform to fetch and subsequently expose the fetched data via a ZIP response. The weakness stems from unvalidated, unauthenticated input of file URLs and a server‑side HTTP GET with redirection and no timeout, providing a conduit for arbitrary internal or external resource disclosure and potential data exfiltration. This flaw may allow attackers to reach internal services, harvest sensitive data, or send requests to arbitrary endpoints on behalf of the platform, thereby compromising confidentiality, integrity, and availability.

Affected Systems

Open edX Platform (product: Open edX Platform, vendor: OpenedX) is affected. Prior to the commit dated 00b7c3c, the platform allowed this SSRF in the Studio video download endpoint. The risk applies to any deployment of the platform using versions that lack this patch; the fix is included in the commit and subsequent releases.

Risk and Exploitability

The CVSS score of 6.8 classifies this as a moderate severity flaw, and the EPSS score is not available, indicating that the exploit likelihood is currently unknown. The vulnerability is not listed in the CISA KEV catalog, suggesting no confirmed widespread exploitation. Attackers can exploit the flaw by sending a crafted request to the vulnerable endpoint, possibly as an authenticated content author or instructor. The ability to follow redirects and the absence of a timeout provide an attacker with the potential to reach internal network services or exfiltrate data. While the precise exploitation path is not detailed, the infrastructure needed for SSRF (server network access) is generally available in most Open edX deployments, making this a credible threat that warrants rapid remediation.

Generated by OpenCVE AI on September 3, 2026 at 10:56 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the patch that corresponds to commit 00b7c3c or a newer release of the Open edX Platform, ensuring the SSRF fix is in place.
  • Configure the platform’s outbound network rules to restrict allowed destinations, limiting potential internal or external services that can be accessed by the platform.
  • Disable or limit request redirection and enforce a timeout on server‑side HTTP requests to reduce the window and scope for SSRF exploitation.

Generated by OpenCVE AI on September 3, 2026 at 10:56 UTC.

Tracking

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Advisories

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History

Fri, 04 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Openedx
Openedx openedx-platform
Vendors & Products Openedx
Openedx openedx-platform

Wed, 02 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
Description Open edX Platform enables the authoring and delivery of online learning at any scale. Prior to commit 00b7c3c, the endpoint accepts user-supplied files[].url, performs a server-side fetch using "requests.get(url, allow_redirects=True)". The fetched bytes are then returned inside a ZIP response. This enables SSRF with response exfiltration. Redirect-following is enabled, and there is no timeout in the vulnerable fetch path. This issue has been patched via commit 00b7c3c.
Title Open edX Platform: SSRF in Studio Video Download Endpoint
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N'}


Subscriptions

Openedx Openedx-platform
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-04T02:47:09.436Z

Reserved: 2026-06-16T21:48:43.125Z

Link: CVE-2026-55421

cve-icon Vulnrichment

Updated: 2026-09-04T02:47:03.908Z

cve-icon NVD

Status : Received

Published: 2026-09-02T17:17:46.290

Modified: 2026-09-04T03:17:41.637

Link: CVE-2026-55421

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T11:00:03Z

Weaknesses
  • CWE-918

    Server-Side Request Forgery (SSRF)