# CVE-2026-105695: Missing authorization in penpot

> An authenticated attacker can consume another user's upload session to steal uploaded data and delete the victim's pending session.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Oct 2026
- **Updated:** 5 Oct 2026
- **Also known as:** GHSA-5vrm-3c6w-gjfv

## What is CVE-2026-105695?

CVE-2026-105695 is a medium-severity missing authorization vulnerability in penpot, published on 5 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-105695?


## How do I fix CVE-2026-105695?

No fix has been published for CVE-2026-105695 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105695 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105695 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105695 and fix it if it is affected.

What it is: CVE-2026-105695 is a medium-severity missing authorization vulnerability in penpot, published on 5 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105695 exists.

Affected product: penpot. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-105695/ (Markdown: https://insights.sbomify.com/CVE-2026-105695/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105695
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105695
- OSV: https://osv.dev/vulnerability/CVE-2026-105695

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105695/
Summaries are generated and may contain mistakes; the official description above is the record.