CVE-2026-102127
highpriority · track · 0EPSS 0.002 · 9 %ileDENLUSEPSS · scored 2026-10-27
An XML parser used by Kiteworks Email Protection Gateway did not restrict external entity references. Where an optional, non-default message-processing feature is enabled, a remote and unauthenticated sender could potentially use a crafted message to read files accessible to the gateway service account, including cryptographic key material and credentials, and have them sent to a destination they control.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedEmail Protection Gatewaycisa_csaf_it
Fixed in 9.5.1.
https://www.kiteworks.com/company/press-releases/kiteworks-precautionary-shutdown-advisory/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (11)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0408Kwetsbaarheden verholpen in KiteworksNL2026-10-08csaf · ncsc_nlNL
Kiteworks heeft meerdere kwetsbaarheden verholpen in de Kiteworks productlijn.
- VA-26-274-01Kiteworks multiple vulnerabilities2026-09-30csaf · cisa_csaf_itUS
Fixed in version 9.5.0 and 9.5.1.
- WID-SEC-W-2026-3695Kiteworks: Mehrere SchwachstellenDeutsch2026-09-30csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Kiteworks ausnutzen, Authentifizierungs- oder Zugriffskontrollen zu umgehen, Benutzer- oder Administratorkonten zu übernehmen, Berechtigungen zu erhöhen, sensible Informationen auszulesen oder zu verändern, beliebige Dateien zu schreiben, interne Systeme per SSRF anzusprechen, SQL- oder Betriebssystembefehle einzuschleusen, Remote Code Execution zu erreichen oder Dienste durch Denial-of-Service zu beeinträchtigen.
sources
Which sources assert this record, and when.
references (2) nvd
External citations — patches, advisories, analysis.
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