CVE-2026-55421
Medium · 6.8CVSS
6.8
EPSS
0.5%
Published
Sep 2, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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