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Fencer Vulns
critical 9.8

CVE-2026-90817 json

An unauthenticated Remote Code Execution vulnerability was found in the survey passthrough routing and Data Import processing logic, in whi…

published 2026-09-20 49 d ago modified 2026-09-22 47 d ago also EUVD-2026-83738

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • Vanderbilt University REDCap 16.0.49, 17.3.10, 17.4.4

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
48 d ago

Exploit prediction

3.75% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template REDCap >= 13.3.0 - Unauthenticated Remote Code Execution via Survey Passthru nuclei detection template

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Vanderbilt University REDCap

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-73 External Control of File Name or Path

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.