CVE-2026-52780

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

State: Published
Severity: 9.6 Critical
Published: Jun 26, 2026
Updated: Jun 27, 2026
Reserved: Jun 8, 2026

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.

Scores

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

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
openprojectopf	< 17.3.3Affected >= 17.4.0, < 17.4.1Affected

References

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

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