What is CVE-2026-105690?

CVE-2026-105690 is a medium-severity vulnerability in Penpot, classified under Insufficient Session Expiration. CVSS score: 5.9/10. Published 2026-10-05.

How severe is CVE-2026-105690?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Penpot

CVE-2026-105690

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.

Published 2026-10-05 · last modified 2026-10-05.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Penpot — versions < 2.18.0

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

Frequently asked questions

What is CVE-2026-105690?: CVE-2026-105690 is a medium-severity vulnerability in Penpot, classified under Insufficient Session Expiration. CVSS score: 5.9/10. Published 2026-10-05.
How severe is CVE-2026-105690?: Medium severity. CVSS v3 base score is 5.9 out of 10.