Vulnerability · Published Oct 5, 2026 · Assigned by GitHub_M

CVE-2026-105690Penpot: Server-side session not invalidated on logout; stale auth-token cookie remains valid for full profile access

Medium 5.9

In plain English

A medium-severity security flaw in penpot from penpot. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
penpot	penpot	< 2.18.0

Weakness: CWE-613 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

References

https://github.com/penpot/penpot/security/advisories/GHSA-mj9f-5cwq-7p3q x_refsource_CONFIRM
https://github.com/penpot/penpot/commit/7c85837290c4e7d6f7d99472b092ad4f7c9d6a97 x_refsource_MISC
https://github.com/penpot/penpot/releases/tag/2.18.0 x_refsource_MISC