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Medium · 5.4 CVE-2026-47859 EUVD-2026-66825GHSA-wh6x-77fw-hcqh

Unbounded memory allocation in RFC6587SyslogDeserializer (octet-counted framing) — remote DoS

Published Aug 26, 2026 · Updated Aug 27, 2026 · Assigned by vmware

Description

RFC6587SyslogDeserializer, used by the Spring Integration syslog TCP inbound adapter to decode RFC 6587 / RFC 5424 frames, trusts the sender-supplied octet count of an octet-counted frame and allocates a byte array of exactly that size with no upper bound.
Spring Integration 7.1.0
Spring Integration 7.0.0 - 7.0.5
Spring Integration 6.5.0 - 6.5.10
Spring Integration 6.4.0 - 6.4.12
Spring Integration 5.5.21 and earlier

Affected products

VendorProductAffectedFixed
Spring Spring Integration 7.1.0, 7.0.0 – ≤ 7.0.5, 6.5.0 – ≤ 6.5.10, 6.4.0 – ≤ 6.4.12, ≤ 5.5.21 —

References