{"id":"CVE-2026-52879","revision":"fe1a13b0edec4e179ccf7f6f7acdc2ef","records":[{"revision":"fe1a13b0edec4e179ccf7f6f7acdc2ef","observedAt":"2026-10-25T13:17:10.707+00:00","statement":{"source":"nvd","id":"CVE-2026-52879","aliases":[],"title":"Klever-Go is the Go implementation of the Klever blockchain protocol. In versions 1.7.14 through 1.7.17, the direct-message ingress handler spawns a new goroutine for every incoming direct message before the processor-level antiflood layer …","description":"Klever-Go is the Go implementation of the Klever blockchain protocol. In versions 1.7.14 through 1.7.17, the direct-message ingress handler spawns a new goroutine for every incoming direct message before the processor-level antiflood layer makes any admission decision, with no semaphore, throttler, or bound on the number of concurrent in-flight spawns. Because the antiflood check runs inside the spawned goroutine rather than before it, a single connected peer can open a direct-send stream and send a stream of well-formed messages to force unbounded goroutine creation, where each goroutine allocates its own stack and holds a message reference until processing completes, adding scheduler and garbage-collection pressure faster than the runtime can drain it. This lets one peer degrade the node's availability and its ability to process legitimate traffic, resulting in a remotely triggerable denial of service. The issue is fixed in 1.7.18.","state":0,"publishedAt":"2026-08-07T23:17:04.743+00:00","modifiedAt":"2026-10-24T16:10:00.153+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/klever-io/klever-go/releases/tag/v1.7.18","https://github.com/klever-io/klever-go/security/advisories/GHSA-hf2g-6j7h-98wg"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52879","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-400","CWE-770"],"productCriteria":[],"sourceDates":{"published":"2026-08-07T23:17:04.743","lastModified":"2026-10-24T16:10:00.153"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-52879","identifiers":["CVE-2026-52879"]},"retained":false,"historicalAffected":[]}],"coverage":[]}