Vulnerability · Published Sep 2, 2026 · Assigned by GitHub_M

CVE-2026-55421Open edX Platform: SSRF in Studio Video Download Endpoint

Medium 6.8

In plain English

A medium-severity server-side request forgery in openedx-platform from openedx. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.5%top 60.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
openedx	openedx-platform	< 00b7c3ce418b487c5696b064fc5033594b045e75

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/openedx/openedx-platform/security/advisories/GHSA-fpf9-9rpr-jvrx x_refsource_CONFIRM
https://github.com/openedx/openedx-platform/commit/00b7c3ce418b487c5696b064fc5033594b045e75 x_refsource_MISC
https://github.com/openedx/openedx-platform/commit/241b914a191ec24658b9cde75a7114db40a5d53a x_refsource_MISC
https://github.com/openedx/openedx-platform/commit/c9831c2c9f53b7aa9a61d80e6d91a9941ce52ec6 x_refsource_MISC