Vulnerability · Published Jun 26, 2026 · Assigned by GitHub_M

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

High 7.5

In plain English

A high-severity information exposure in openproject from opf. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 75.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
opf openproject < 17.3.3>= 17.4.0, < 17.4.1

Weakness: CWE-200, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References