CVE-2026-105690

Penpot: Server-side session not invalidated on logout; stale auth-token cookie remains valid for full profile access

Published Oct 5, 2026 CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, logout clears the browser's auth-token cookie without revoking the corresponding server-side session. A previously captured session token remains usable after the victim logs out and can continue to make authenticated requests with the victim's authority until natural expiration. This issue is fixed in version 2.18.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Penpot
Penpot penpot
Vendors & Products Penpot
Penpot penpot
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Penpot is an open-source design and prototyping platform. Prior to 2.18.0, logout clears the browser's auth-token cookie without revoking the corresponding server-side session. A previously captured session token remains usable after the victim logs out and can continue to make authenticated requests with the victim's authority until natural expiration. This issue is fixed in version 2.18.0.
Title Penpot: Server-side session not invalidated on logout; stale auth-token cookie remains valid for full profile access
Weaknesses CWE-613
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 5, 2026, 8:42 PM
Reserved
Oct 5, 2026, 5:48 PM
Status
Deferred
Published
Oct 5, 2026, 8:17 PM
Modified
Oct 5, 2026, 9:16 PM