CVE-2026-105695
Penpot: Missing authorization in chunked-upload assembly lets another authenticated user consume a victim's upload session
Description
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user's live, completed upload-session UUID can assemble the victim's chunks into the attacker's own file, team font, or project import, disclosing the uploaded bytes and deleting the victim's pending session. This issue is fixed in version 2.18.0.
INFO
Published Date :
Oct. 5, 2026, 8:17 p.m.
Last Modified :
Oct. 5, 2026, 9:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Penpot to version 2.18.0 or later.
- Verify session handling logic for uploads.
- Restrict upload session access to authenticated users.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-105695.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-105695 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-105695
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-105695 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-105695 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 05, 2026
Action Type Old Value New Value Added Reference https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv Added SSVC {'id': 'CVE-2026-105695', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-05T20:40:35.188252Z'} -
New CVE Received by [email protected]
Oct. 05, 2026
Action Type Old Value New Value Added Description Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user's live, completed upload-session UUID can assemble the victim's chunks into the attacker's own file, team font, or project import, disclosing the uploaded bytes and deleting the victim's pending session. This issue is fixed in version 2.18.0. Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L Added CWE CWE-862 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/105xxx/CVE-2026-105695.json">CVE-2026-105695</a> Added Reference https://github.com/penpot/penpot/commit/367e4d534c536c33d4f3fbad375f3e9c29b787a6 Added Reference https://github.com/penpot/penpot/pull/11012 Added Reference https://github.com/penpot/penpot/releases/tag/2.18.0 Added Reference https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv