CVE-2026-90817: Code Injection
An unauthenticated Remote Code Execution vulnerability was found in the survey passthrough routing and Data Import processing logic, in which a malicious user could potentially exploit it by manipulating HTTP requests to access an unintended controller route from a public survey context and by supplying a crafted file-path/stream parameter during import handling. If successfully exploited, this could allow the attacker to remotely execute arbitrary code on the REDCap server. The attacker does not have to be authenticated in order to exploit this, but exploitation requires knowledge of a valid public survey hash. This vulnerability exists in REDCap 13.3.0 and higher.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
REDCapto a version that resolves this vulnerability.Fixed in 16.0.49 - Upgrade
Upgrade
REDCapto a version that resolves this vulnerability.Fixed in 17.3.10 - Upgrade
Upgrade
REDCapto a version that resolves this vulnerability.Fixed in 17.4.4
Event History
Frequently Asked Questions
Who is exposed to exploitation?
Organizations running REDCap 13.3.0 or higher are affected. Exploitation is possible from a public survey context and does not require an authenticated REDCap account.
What does an attacker need to exploit this issue?
The attacker needs knowledge of a valid public survey hash. They would manipulate HTTP requests to reach an unintended controller route and provide a crafted file-path or stream parameter during Data Import handling.
Are systems without public surveys affected?
The described attack path depends on access through a public survey context and knowledge of a valid public survey hash. The provided information does not identify another exploitation path.
How can I determine whether my deployment is potentially affected?
Verify whether the REDCap deployment is version 13.3.0 or later and whether it uses public surveys with valid survey hashes. Those conditions match the affected version range and described exploitation prerequisite.