CVE-2026-40896: medium-severity vulnerability in opf openproject
OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even projects they have no access to. No knowledge of the target project, meeting, or victim is required; the attacker can blindly spray items into every meeting on the instance by iterating sequential section IDs. Version 17.3.0 patches the issue.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected products
opf · openprojectRelated CVEs — opf openproject
In the same product, most dangerous first.
CVE-2023-33960HIGHOpenProject vulnerable to project identifier information leakage through robots.txtEPSS 1.3%CVE-2021-43830HIGHSQL injection in OpenProjectEPSS 1.0%CVE-2021-32763MEDIUMRegular Expression Denial of Service in OpenProject forum messagesEPSS 0.9%CVE-2023-31140MEDIUMOpenProject user sessions not terminated after activation of 2FAEPSS 0.9%CVE-2026-25763CRITICALCommand Injection on OpenProject repositories leads to Remote Code ExecutionEPSS 0.5%CVE-2026-46386CRITICALOpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`EPSS 0.5%