High severity · published Jun 26, 2026
CVE-2026-47193
OpenProject: Journal diff endpoint bypasses object, journal, and field visibility checks
7.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openproject · opf
< 17.3.3; >= 17.4.0, < 17.4.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47193
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47193
github.com
https://github.com/opf/openproject/security/advisories/GHSA-f2rx-x2qj-2hgj
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