CVE-2026-63396: high-severity vulnerability in roostorg coop
Coop has a data leak via unauthenticated GraphQL Query.allOrgs
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
Coop is an open source review and moderation tool from ROOST. Prior to 1.0.0, an unauthenticated actor can query `Query.allOrgs` through `/api/v1/graphql` on a publicly accessible deployment and obtain data for all organizations, including organization IDs, names, email addresses, website URLs and on-call alert email addresses. The `usersWhoCanReviewEveryQueue` field also exposes reviewing users' IDs, email addresses, first and last names, roles, permissions and creation dates. 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
roostorg · coopRelated CVEs — roostorg coop
In the same product, most dangerous first.
CVE-2026-63399MEDIUMCoop: Unauthenticated org provisioning via GraphQL Mutation.createOrgEPSS 0.3%CVE-2026-63400LOWCoop sessions are not invalidated on password resetEPSS 0.3%CVE-2026-63401MEDIUMCoop has cross-org IDOR in addAccessibleQueuesForUser / removeAccessibleQueuesForUserEPSS 0.3%CVE-2026-63398HIGHCoop has SAML cross-tenant authentication bypassEPSS 0.2%