CVE-2026-114426

HighCVSS 8.7/10Last modified Nov 4, 2026

Description

SEPPmail Secure Email Gateway before 15.1.1 processes and writes v1 file-interface upload data before authenticating the caller and without an absolute request-size limit. An unauthenticated remote attacker can occupy workers and consume temporary storage with concurrent or slow requests, causing service unavailability.

Metrics

CVSS 4.0 8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
SEPPmail AG	SEPPmail Secure Email Gateway (SEG)	< 15.1.1

References

https://docs.seppmail.com/en/20_revision-history.html

Timeline

Published: Nov 4, 2026
Last modified: Nov 4, 2026
NVD status: Deferred

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