CVE-2026-47859

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

  • Published Aug 27, 2026
  • CVSS 6.5 medium
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-47859 at the National Vulnerability Database