{"schema_version":1,"title":"Http4s Blaze-Server vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Http4s Blaze-Server: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-69209, was published on 15 September 2026.","url":"https://junglewise.ai/threats/technologies/blaze-server","json_url":"https://junglewise.ai/threats/technologies/blaze-server.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/blaze-server","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-69209","cvss":7.5,"epss":0.0063,"slug":"cve-2026-69209-http4s-websocket-decoder-unbounded-message-buffering","title":"http4s WebSocket decoder unbounded message buffering","severity":"high","exploited":false,"published_at":"2026-09-15T19:17:37.87+00:00","url":"https://junglewise.ai/threats/cve-2026-69209-http4s-websocket-decoder-unbounded-message-buffering"},{"cve":"CVE-2026-73493","cvss":7.5,"epss":0.0063,"slug":"cve-2026-73493-http4s-blaze-server-unbounded-websocket-message-aggregation","title":"Http4s blaze-server unbounded WebSocket message aggregation","severity":"high","exploited":false,"published_at":"2026-08-12T22:17:16.673+00:00","url":"https://junglewise.ai/threats/cve-2026-73493-http4s-blaze-server-unbounded-websocket-message-aggregation"},{"cvss":7.5,"slug":"http4s-blaze-server-denial-of-service-via-unbounded-websocket-0f406951","title":"http4s blaze-server Denial of Service via Unbounded WebSocket Aggregation","severity":"high","exploited":false,"published_at":"2026-07-24T22:28:05+00:00","url":"https://junglewise.ai/threats/http4s-blaze-server-denial-of-service-via-unbounded-websocket-0f406951"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Http4s-Ember-Core","slug":"http4s-ember-core","vulnerabilities":10,"url":"https://junglewise.ai/threats/technologies/http4s-ember-core"},{"name":"Http4s","slug":"http4s","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/http4s"}],"technology":{"hub":true,"name":"Http4s Blaze-Server","slug":"blaze-server","vendor":{"name":"Http4s","slug":"http4s","url":"https://junglewise.ai/threats/vendors/http4s"},"aliases":["http4s-blaze-server"],"category":"library","homepage":"https://http4s.org/","repo_url":"https://github.com/http4s/http4s-blaze","description":"A NIO-based HTTP server implementation for the http4s ecosystem.","url":"https://junglewise.ai/threats/technologies/blaze-server"},"most_severe":[{"cve":"CVE-2026-69209","cvss":7.5,"epss":0.0063,"slug":"cve-2026-69209-http4s-websocket-decoder-unbounded-message-buffering","title":"http4s WebSocket decoder unbounded message buffering","severity":"high","exploited":false,"published_at":"2026-09-15T19:17:37.87+00:00","url":"https://junglewise.ai/threats/cve-2026-69209-http4s-websocket-decoder-unbounded-message-buffering"},{"cve":"CVE-2026-73493","cvss":7.5,"epss":0.0063,"slug":"cve-2026-73493-http4s-blaze-server-unbounded-websocket-message-aggregation","title":"Http4s blaze-server unbounded WebSocket message aggregation","severity":"high","exploited":false,"published_at":"2026-08-12T22:17:16.673+00:00","url":"https://junglewise.ai/threats/cve-2026-73493-http4s-blaze-server-unbounded-websocket-message-aggregation"},{"cvss":7.5,"slug":"http4s-blaze-server-denial-of-service-via-unbounded-websocket-0f406951","title":"http4s blaze-server Denial of Service via Unbounded WebSocket Aggregation","severity":"high","exploited":false,"published_at":"2026-07-24T22:28:05+00:00","url":"https://junglewise.ai/threats/http4s-blaze-server-denial-of-service-via-unbounded-websocket-0f406951"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}