CVE-2026-46386
Critical · 9.9CVSS
9.9
EPSS
0.5%
Published
Jun 26, 2026
CISA due date
—
The record
OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRET_KEY_BASE=OVERWRITE_ME as the default Rails master key. Combined with cookies_serializer = :marshal, this gives any logged-in user a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader This vulnerability is fixed in .
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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