CVE-2026-47859
Last modified
CVE-2026-47859 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Spring Integration | < 5.5.22 |
| Vmware | Spring Integration | >= 6.4.0, < 6.4.13 |
| Vmware | Spring Integration | >= 6.5.0, < 6.5.11 |
| Vmware | Spring Integration | >= 7.0.0, < 7.0.5.1 |
| Vmware | Spring Integration | >= 7.1.0, < 7.1.0.1 |
References
- https://spring.io/security/cve-2026-47859Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-47859?
How severe is CVE-2026-47859?
How do I fix CVE-2026-47859?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-47850Spring Data REST does not preserve the persisted version (@V…4.3
- CVE-2026-47851Analyzing a PDF with a deeply nested or cyclic table of cont…7.5
- CVE-2026-47852A local attacker on a multi-user host can pre-create the det…7.5
- CVE-2026-47856Spring Integration's JSON to object conversion uses the json…6.3
- CVE-2026-47857In Reactor Core, applications that use the Flux.windowTimeou…5.9
- CVE-2026-47858Starting Spring Boot applications in the Spring Tools with t…8
- CVE-2026-4786Mitgation of CVE-2026-4519 was incomplete. If the URL contai…7.1
- CVE-2026-47860An attacker who can publish to a queue consumed by an applic…6.5
- CVE-2026-47861An unauthenticated remote attacker who can send a single UDP…6.3
- CVE-2026-47862An attacker who can set the file_name header on a message re…5.4
- CVE-2026-47863In Reactor Core, applications that use the Flux.bufferTimeou…7.5
- CVE-2026-47864SerializingHttpMessageConverter deserializes the body of inc…9.8
Are you affected by CVE-2026-47859?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST