CVE-2026-52780

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

CVSS 9.6 CRITICALEPSS 0.2%CWE-20

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.6EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

26 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

opf · openproject

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References

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