CVE-2026-52780

CRITICAL

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

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.6
EPSS 0.0023
EPSS Percentile 14.1%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20
Status published
Products (2)
opf/openproject < 17.3.3
opf/openproject >= 17.4.0, < 17.4.1
Published Jun 26, 2026
Tracked Since Jun 27, 2026