Is CVE-2026-103471 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-103471?

CVE-2026-103471 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-103471

Description

restbed through 5.0.0 buffers HTTP request headers without enforcing a maximum size limit, allowing remote unauthenticated attackers to exhaust server memory. Attackers can open TCP connections and stream bytes indefinitely without sending the header delimiter, forcing the server to allocate unbounded heap memory until the process is killed.