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CVE-2026-105688— Penpot: Team admin can escalate to owner via team invitation (missing owner-role guard on the invitation path)

Quick assessment

Affected
penpot penpot
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.

Penpot 是一款开源的设计与原型制作平台。在版本 2.18.0 之前， 接口以及邀请接受流程允许非所有者的团队管理员分配“所有者”角色，因为邀请中的角色会被持久化并直接应用，而未采用 中使用的角色上限检查机制。攻击者可以先以管理员身份邀请另一个账户成为所有者，从而创建多个所有者账户，然后利用新创建的所有者账户获得仅所有者才能享有的团队控制权限。该问题已在 2.18.0 版本中得到修复。

CVSS 6.7 · Medium
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I. Basic Information for CVE-2026-105688

Vulnerability Information
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Vulnerability Title
Penpot: Team admin can escalate to owner via team invitation (missing owner-role guard on the invitation path)
Source: CVE Program / CVE List V5
Vulnerability Description
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, create-team-invitations and the invitation acceptance path allow a non-owner team administrator to assign the owner role because invitation roles are persisted and applied without the role-ceiling check used by update-team-member-role. An administrator can invite another account as an owner, create multiple owners, and then use the new owner account to obtain owner-only control over the team. This issue is fixed in version 2.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
penpot penpot < 2.18.0 -

II. Public POCs for CVE-2026-105688

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III. Intelligence Information for CVE-2026-105688

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Other References for CVE-2026-105688 (3)

Same Patch Batch · penpot · 2026-10-05 · 12 CVEs total

CVE-2026-105691 9.9 CRITICAL Penpot: Authenticated OS Command Injection in Penpot SVG Exporter via Legacy fill-color
CVE-2026-105696 6.5 MEDIUM Penpot: Share-link page-scope escalation: a share-link holder reads pages outside the link
CVE-2026-105689 6.0 MEDIUM Penpot: SSRF guard bypass via IPv6 transition addresses (NAT64/6to4/Teredo) in webhook del
CVE-2026-105695 5.9 MEDIUM Penpot: Missing authorization in chunked-upload assembly lets another authenticated user c
CVE-2026-105690 5.9 MEDIUM Penpot: Server-side session not invalidated on logout; stale auth-token cookie remains val
CVE-2026-105694 5.4 MEDIUM Penpot: Stored XSS via Unsanitised SVG Uploads
CVE-2026-105692 5.4 MEDIUM Penpot: IDOR in Share-Link Deletion Allows Any File Editor to Delete Share-Links They Did
CVE-2026-105693 5.3 MEDIUM Penpot: Anonymous share-link token disclosure & page-scope bypass via get-view-only-bundle
CVE-2026-105686 5.3 MEDIUM Penpot: Repeated chunk index causes temporary-storage amplification
CVE-2026-105687 4.9 MEDIUM Penpot: A team admin (non-owner) can remove the team owner via ::delete-team-member — miss
CVE-2026-105684 4.3 MEDIUM Penpot: Share-link page-scope escape — comment RPCs leak comment content, author identity,

IV. Related Vulnerabilities

Same product: penpot
Same vendor: penpot
Same weakness: CWE-269

V. Comments for CVE-2026-105688

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