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CRITICAL

CVE-2026-90817

Remote Code Execution via Survey Passthrough Routing and Data Import in REDCap

CVSS v3

9.8

CRITICAL

EPSS Score

0.9 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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 no

Technical details

Published
2026-09-20
Last Modified
2026-09-21

Frequently asked questions

What is CVE-2026-90817?

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 no

Is CVE-2026-90817 actively exploited?

Active exploitation of CVE-2026-90817 has not been confirmed. Its EPSS score was 0.9% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-90817?

CVE-2026-90817 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-90817 affecting your environment?

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