CVE-2026-52780 PUBLISHED

OpenProject: Cache store poisoning leads to Remote Code Execution (RCE)

Assigner: GitHub_M
Reserved: 08.06.2026 Published: 26.06.2026 Updated: 27.06.2026

OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, cache store poisoning leads to Remote Code Execution (RCE). This vulnerability is fixed in 17.3.3 and 17.4.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.6

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	opf
Product	openproject
Versions	Version < 17.3.3 is affected Version >= 17.4.0, < 17.4.1 is affected

References

https://github.com/opf/openproject/security/advisories/GHSA-qj96-f42f-6336

Problem Types

CWE-20: Improper Input Validation CWE