Is CVE-2026-105690 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-105690 being exploited in the wild.

How severe is CVE-2026-105690?

Medium severity, with a CVSS score of 5.9, published 5 October 2026.

Is there a fix for CVE-2026-105690?

Yes: fixed in 2.18.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-105690 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-105690?

Check whether you run Penpot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-105690: Penpot session token replay via logout bypass

CVE-2026-105690 · Severity: medium · CVSS 5.9 · Published 2026-10-05

Penpot is an open-source design and prototyping platform that enables collaborative design work. Before version 2.18.0, logging out only cleared the browser cookie but did not revoke the server-side session, allowing an attacker who previously captured a session token to continue making authenticated requests as the victim indefinitely or until the token naturally expires. This permits unauthorized access to the victim's projects, designs, and account data.

Technologies: Penpot. Vendors: Penpot.

Quick answers

Is CVE-2026-105690 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-105690 being exploited in the wild.
How severe is CVE-2026-105690?: Medium severity, with a CVSS score of 5.9, published 5 October 2026.
Which products and versions are affected?: Penpot prior to 2.18.0.
Is there a fix for CVE-2026-105690?: Yes: fixed in 2.18.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-105690 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-105690?: Check whether you run Penpot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 2.18.0

Technical details

The logout function clears the auth-token browser cookie but fails to invalidate the corresponding server-side session due to a code path issue where the session ID is not properly available for deletion. An attacker with a previously captured session token (CWE-613: Insufficient Session Expiration) can replay it to bypass authentication checks. The fix in 2.18.0 corrects the delete function to properly revoke the server-side session when the user logs out.

Affected products

Penpot Penpot prior to 2.18.0

Timeline

2026-10-05: disclosed
2026-09-23: patched: Version 2.18.0 released

References

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