Unbounded persistent session allocation via repeated initialize requests
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Spring | Spring AI | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Spring | Spring Ai |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.549% probability within 30 days)
| Link | Providers |
|---|---|
| https://spring.io/security/cve-2026-59279 |
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Vmware
Vmware spring Ai |
|
| CPEs | cpe:2.3:a:vmware:spring_ai:*:-:*:*:*:*:*:* | |
| Vendors & Products |
Vmware
Vmware spring Ai |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Spring
Spring spring Ai |
|
| Vendors & Products |
Spring
Spring spring Ai |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 | |
| Title | Unbounded persistent session allocation via repeated initialize requests | |
| Weaknesses | CWE-770 | |
| References |
| |
| Metrics |
cvssV3_1
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