Medium severity · published Aug 27, 2026
CVE-2026-59287
Spring for GraphQL WebSocket Client Denial of Service
5.9
CVSS
0.4%
EPSS
No
On KEV
Description
Spring for GraphQL is vulnerable to Denial of Service attacks when using the WebSocket client with keepAlive enabled.
Spring for GraphQL 2.0.0 - 2.0.4
Spring for GraphQL 1.4.0 - 1.4.6
Spring for GraphQL 1.3.0 - 1.3.9
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Spring for GraphQL · Spring
2.0.0 through 2.0.4; 1.4.0 through 1.4.6; 1.3.0 through 1.3.9 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59287
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59287
Vendor Advisory
https://spring.io/security/cve-2026-59287
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