CVE-2026-8286
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
A vulnerability allows reusing an existing live connection for a new transfer using STARTTLS even when the TLS configuration mismatches, potentially leading to unauthorized access or man-in-the-middle attacks.
Risk Assessment
The organization risks interception or modification of data transmitted over connections that should be TLS-protected but may be carried over an unsecured channel due to this flaw.
Recommendation
Immediately update to a patched version of the software and enforce re-establishing connections whenever TLS configuration changes.
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Original NVD description (English source)
A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not.