CVE-2026-55421

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 39.5% of scored records. A rank, not a probability.

NVD base score

6.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-09-09.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-02 16:54Z1 MO AGO

Last updated

2026-09-04 02:47Z1 MO AGO

Reserved

2026-06-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.2

Document digest

a14701ed6c2f4884a0382604b455abc1c229510be3b4fa54ecfccab34459c3db

• github.comhttps://github.com/openedx/openedx-platform/security/advisories/GHSA-fpf9-9rpr-jvrxx_refsource_CONFIRM
• github.comhttps://github.com/openedx/openedx-platform/commit/00b7c3ce418b487c5696b064fc5033594b045e75x_refsource_MISC
• github.comhttps://github.com/openedx/openedx-platform/commit/241b914a191ec24658b9cde75a7114db40a5d53ax_refsource_MISC
• github.comhttps://github.com/openedx/openedx-platform/commit/c9831c2c9f53b7aa9a61d80e6d91a9941ce52ec6x_refsource_MISC