SEPTEMBER 17, 2026
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Case File

CVE-2026-55421

MEDIUM · CVSS 6.8 EPSS 0.26% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-02 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The Open edX Platform is vulnerable to server-side request forgery (SSRF) due to improper handling of user-supplied URLs, allowing attackers to exfiltrate sensitive data through crafted requests. The lack of a timeout and the ability to follow redirects exacerbate the risk, potentially leading to unauthorized access to internal services. Organizations using the Open edX Platform should prioritize patching this vulnerability to mitigate the risk of data exposure.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55421
Severity
MEDIUM
CVSS
6.8
EPSS
0.26%

Original NVD 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.