CVE-2026-63399

medium

Description

Coop is an open source review and moderation tool from ROOST. Prior to 1.0.0, the `GraphQL` `Mutation.createOrg` operation allows an unauthenticated actor to create arbitrary organizations on a publicly accessible instance. In addition to creating noise in the logs, the lack of rate limiting could potentially lead to database exhaustion. Running the service on an authenticated private network prevents outside actors from directly querying the `GraphQL` API. This issue is fixed in version 1.0.0.

References

https://github.com/roostorg/coop/security/advisories/GHSA-jcph-g6qv-g475

https://github.com/roostorg/coop/releases/tag/1.0.0

https://github.com/roostorg/coop/pull/699

https://github.com/roostorg/coop/commit/b29242f12f5acca0ac26116c30be9da77c15d93c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114547

Details

Source: Mitre, NVD

Published: 2026-10-30

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00285