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Severity across 2 analyzed records
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As of 09/11/2026, within CyStack's analyzed data, Reactor Core has 2 security vulnerabilities published in the last 90 days. Of these, 0 are rated High or Critical. None of these vulnerabilities is listed in the CISA KEV catalog. CyStack recommends that organizations and individual users remediate applicable vulnerabilities as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Reactor Core and determine which vulnerabilities affect that version.
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| CVE | Exploitation status | Fix | Published | Severity |
|---|---|---|---|---|
CVE-2026-47863Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush | Exploitation statusNot known exploited | FixYes | Published08/26/2026 | SeverityMedium |
CVE-2026-47857Reactor Core windowTimeout fair-backpressure stream hang due to 20-bit index wrap-around | Exploitation statusNot known exploited | FixYes | Published08/26/2026 | SeverityMedium |
