VULNERABILITY INTELLIGENCE

CVE-2026-55421

CVSS score6.8 MEDIUM
EPSS probability0.46%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-918

Primary references