CVE•Published 2026-09-30•Modified 2026-10-08•0 articles on news•4 live references•NVD data

CVE-2026-102131Accellion · Kiteworks

Vulnerability data via NVD (ingested)

CVSS v3.1

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 69% of all CVEs

Weaknesses (CWE)

CWE-94Improper Control of Generation of Code CWE-178Improper Handling of Case Sensitivity

Description

Kiteworks Email Protection Gateway rejected certain configuration settings, but its validation did not recognize every form in which they could be supplied. An authenticated administrator could potentially use an unrecognized form to have a file of their choosing written to the gateway and executed, resulting in code execution as the gateway service account.

Timeline

Published 2026-09-30

Modified 2026-10-08

External references

NVD MITRE GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-102131

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Accellion Kiteworks"

All exposed Accellion Kiteworks instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Kiteworks"

HTTP body or banner mentions "Kiteworks" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-102131