6.9
MediumCVSS 4.0 · from GitHub_M
CVE-2026-63399
Coop: Unauthenticated org provisioning via GraphQL Mutation.createOrg
coop · Missing authentication · CWE-306Affectedcoop
FixNo fix listed yet.
PublishedOct 30, 22:40 · GitHub_M
ScoredOct 30 · 6.9 · GitHub_M
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:04 UTC
What we know
No known exploitation. CISA KEV, checked 22:04 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
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.
From GitHub_M
Affected and fixed versions
ProductAffectedFixed incoop< 1.0.0–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known