CVE-2026-102139
mediumAn authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a part…
Vendor / product: Accellion — kiteworks
An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Severity source: NVD CVSS v3.1 (9119a7d8-5eab-497f-8521-727c672e3725)
Timeline (UTC)
Published: 2026-09-30 21:17
Modified: 2026-10-07 15:01
NVD status: Analyzed
Last synced 3 days ago
Verified against the source API 2026-10-27 06:56 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
accellion / kiteworks <9.5.1
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/kiteworks/security-advisories/security/advisories/GHSA-fp46-xhg8-vpgm 9119a7d8-5eab-497f-8521-727c672e3725
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-... 9119a7d8-5eab-497f-8521-727c672e3725
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗