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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-105690
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 20:17:18 UTC
Updated2026-10-05 21:16:34 UTC
DescriptionPenpot 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

Problem Types: CWE-613 | CWE-613 CWE-613: Insufficient Session Expiration

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
3.1CNADECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Penpot Penpot affected < 2.18.0 Not specified

References

ReferenceSourceLinkTags
github.com/penpot/penpot/security/advisories/GHSA-mj9f-5cwq-7p3q [email protected] github.com
github.com/penpot/penpot/releases/tag/2.18.0 [email protected] github.com
github.com/penpot/penpot/commit/7c85837290c4e7d6f7d99472b092ad4f7c9d6a97 [email protected] github.com
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