HIGH 7.5 NVD

CVE-2026-59279

The MCP Streamable HTTP server transport (WebFlux and WebMvc variants) does not place any limit on the number of sessions it retains, and by default does not re

The MCP Streamable HTTP server transport (WebFlux and WebMvc variants) does not place any limit on the number of sessions it retains, and by default does not require clients to be authenticated. As a result, a remote attacker can cause the server to accumulate an unbounded number of sessions over time, gradually exhausting available memory and ultimately causing a Denial of Service that affects all legitimate clients. Affected versions: Spring AI: 2.0.0

References

https://spring.io/security/cve-2026-59279

Published: 2026-08-21 · Source: NVD · Feed updated: 2026-08-21

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-08-21 via NVD.

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