Vulnerability · Published Aug 27, 2026 · Assigned by vmware
CVE-2026-47888Spring Framework Memory Leak via SETUP Frame in RSocketMessageHandler
High 7.5
In plain English
A high-severity memory leak in Spring Framework from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A Spring RSocket application is exposed to a memory leak via a malformed SETUP frame. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.0.RELEASE - 5.2.25.RELEASE
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libspring-java | no fix listed | DEBIAN-CVE-2026-47888 |
| Debian:13 | libspring-java | no fix listed | DEBIAN-CVE-2026-47888 |
| Debian:14 | libspring-java | no fix listed | DEBIAN-CVE-2026-47888 |
| Ubuntu:26.04:LTS | libspring-java | no fix listed | UBUNTU-CVE-2026-47888 |
| Ubuntu:26.10 | libspring-java | no fix listed | UBUNTU-CVE-2026-47888 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Framework | 7.0.0 – through 7.0.86.2.0 – through 6.2.196.1.0 – through 6.1.286.0.0 – through 6.0.305.3.0 – through 5.3.495.2.0.RELEASE – through 5.2.25.RELEASE |
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H