CVE-2026-59295

Description

Micrometer-instrumented Apache HttpAsyncClient (4.x or 5.x) usage via MicrometerHttpClientInterceptor can leak memory unboundedly when asynchronous requests fail before receiving a response (e.g. connection resets or timeouts). Tracking state for these requests remains in memory indefinitely, and sustained failures lead to heap exhaustion and OutOfMemoryError crashes.

CVSS Vector

References

• https://github.com/spring-projects/security-advisories/security/advisories/GHSA-747c-jhq3-w433
• https://spring.io/security/cve-2026-59295