Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-47859

CVE-2026-47859MEDIUM

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

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  N  N  H    6.5   .0029   19.4     —

AFFECTED
  Product             Versions  Fixed
  Spring Integration  7.1.0 –   —

TIMELINE
  May 20  Reserved by vmware
  Aug 26  Published (CNA: vmware)
  Sep 4   RESCORED — CVE-2026-47859 (Spring Integration). CVSS 5.4 → 6.5 (NVD).

CWE-770 · CNA: vmware · CVSS v3.1 · 1 reference · NVD status: Analyzed

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

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 20, 2026	Reserved	Reserved by vmware
August 26, 2026	Published	Published (CNA: vmware)
September 4, 2026	RESCORED	RESCORED — CVE-2026-47859 (Spring Integration). CVSS 5.4 → 6.5 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Spring	Spring Integration	—	7.1.0	—

Weaknesses

CWE-770

References (1)

https://spring.io/security/cve-2026-47859 [Vendor Advisory]

Authoritative record: CVE-2026-47859 at cve.org

Vendors: spring

Weaknesses: CWE-770

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-47859 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.