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CVE-2026-63401— Coop has cross-org IDOR in addAccessibleQueuesForUser / removeAccessibleQueuesForUser

Quick assessment

Affected
roostorg coop
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Coop 是由 ROOST 开发的一款开源审核与内容 moderation 工具。在 1.0.2 版本之前， 和 函数在调用时未对 和 参数实施组织范围（organization scoping）限制。因此，属于某一组织且拥有 MRT 队列编辑权限的已认证用户，可以授予或撤销其他组织用户对人工审核队列的访问权限。原有的队列编辑权限检查机制未能将传入的标识符与调用者所属组织进行绑定。虽然攻击者无法读取其他组织的队列或任务，因此该问题未导致机密数据泄露，但仍构成权限越界风险。此问题已在 1.0.2 版本中修复。

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-63401

Vulnerability Information
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Vulnerability Title
Coop has cross-org IDOR in addAccessibleQueuesForUser / removeAccessibleQueuesForUser
Source: CVE Program / CVE List V5
Vulnerability Description
Coop is an open source review and moderation tool from ROOST. Prior to 1.0.2, `addAccessibleQueuesForUser` and `removeAccessibleQueuesForUser` accepted arbitrary `queueId` and `userId` values without organization scoping. An authenticated user belonging to one organization and holding MRT queue-edit permission could grant or revoke another organization's users' access to manual review queues. The existing queue-edit permission check did not bind the supplied identifiers to the caller's organization. The attacker could not read the other organization's queues or jobs, so this issue did not disclose confidential data. This issue is fixed in version 1.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
roostorg coop < 1.0.2 -

II. Public POCs for CVE-2026-63401

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III. Intelligence Information for CVE-2026-63401

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Other References for CVE-2026-63401 (4)

Same Patch Batch · roostorg · 2026-10-30 · 5 CVEs total

CVE-2026-63396 8.7 HIGH Coop has a data leak via unauthenticated GraphQL Query.allOrgs
CVE-2026-63398 7.4 HIGH Coop has SAML cross-tenant authentication bypass
CVE-2026-63399 6.9 MEDIUM Coop: Unauthenticated org provisioning via GraphQL Mutation.createOrg
CVE-2026-63400 2.3 LOW Coop sessions are not invalidated on password reset

IV. Related Vulnerabilities

Same product: coop
Same vendor: roostorg
Same weakness: CWE-639