CVE-2026-90817: Vanderbilt University REDCap · Code Injection
Affects Vanderbilt University REDCapSource CVE Database V5
Not known to be exploited · public detection template (Nuclei) · CVSS 9.8 Critical.
Data as of 5 Nov 2026, 00:01 UTC
- EPSS
- 3.7% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Sep 2026
Detectable: evidence found.
nuclei template: REDCap >= 13.3.0 - Unauthenticated Remote Code Execution via Survey Passthru
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Vanderbilt UniversityREDCap | Affected
| Fixed in– |
AI-suggested
Until a fix is available, restrict access to public survey hashes and monitor for suspicious activity related to survey passthrough routing and data import features.
Description
CVE-2026-90817 is a critical unauthenticated remote code execution vulnerability in Vanderbilt University's REDCap software. It affects version 13.3.0 and higher. The flaw arises from improper control of code generation in the survey passthrough routing and data import processing logic. An attacker with knowledge of a valid public survey hash can manipulate HTTP requests and crafted file-path or stream parameters to execute arbitrary code on the REDCap server without authentication.