{"schema_version":1,"title":"github.com/gorilla/websocket (Go) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in github.com/gorilla/websocket (Go): 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, GO-2026-6278 - Gorilla WebSocket Uses Cryptographically Weak PRNG for…, was published on 25 August 2026.","url":"https://junglewise.ai/threats/technologies/github-com-gorilla-websocket","json_url":"https://junglewise.ai/threats/technologies/github-com-gorilla-websocket.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/github-com-gorilla-websocket","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":3},"latest":[{"slug":"go-2026-6278-gorilla-websocket-uses-cryptographically-weak-prng-for-262c21c8","title":"GO-2026-6278 - Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key in github.com/gorilla/websocket","severity":"info","exploited":false,"published_at":"2026-08-25T15:00:08+00:00","url":"https://junglewise.ai/threats/go-2026-6278-gorilla-websocket-uses-cryptographically-weak-prng-for-262c21c8"},{"cvss":6.9,"slug":"gorilla-websocket-weak-prng-for-mask-key-generation-0861bf09","title":"Gorilla WebSocket weak PRNG for mask key generation","severity":"medium","exploited":false,"published_at":"2026-08-24T21:00:54+00:00","url":"https://junglewise.ai/threats/gorilla-websocket-weak-prng-for-mask-key-generation-0861bf09"},{"cvss":4,"slug":"gorilla-websocket-uses-cryptographically-weak-prng-for-websocket-mask-d9026bd8","title":"Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key","severity":"medium","exploited":false,"published_at":"2026-08-24T21:00:54+00:00","url":"https://junglewise.ai/threats/gorilla-websocket-uses-cryptographically-weak-prng-for-websocket-mask-d9026bd8"},{"cve":"CVE-2020-27813","cvss":3.1,"epss":0.0215,"slug":"cve-2020-27813-integer-overflow-in-github-com-gorilla-websocket","title":"GO-2020-0019 - Integer overflow in github.com/gorilla/websocket","severity":"low","exploited":false,"published_at":"2021-04-14T20:04:52+00:00","url":"https://junglewise.ai/threats/cve-2020-27813-integer-overflow-in-github-com-gorilla-websocket"}],"weekly":[{"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":0},{"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":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":3},{"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":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"github.com/mattermost/mattermost-server (Go)","slug":"github-com-mattermost-mattermost-server","vulnerabilities":274,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server"},{"name":"github.com/mattermost/mattermost-server/v6 (Go)","slug":"github-com-mattermost-mattermost-server-v6","vulnerabilities":188,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6"},{"name":"github.com/mattermost/mattermost-server/v5 (Go)","slug":"github-com-mattermost-mattermost-server-v5","vulnerabilities":186,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5"},{"name":"github.com/mattermost/mattermost/server/v8 (Go)","slug":"github-com-mattermost-mattermost-server-v8","vulnerabilities":182,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8"},{"name":"stdlib (Go)","slug":"go-stdlib","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/go-stdlib"},{"name":"github.com/siyuan-note/siyuan/kernel (Go)","slug":"github-com-siyuan-note-siyuan-kernel","vulnerabilities":158,"url":"https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel"},{"name":"code.gitea.io/gitea (Go)","slug":"code-gitea-io-gitea","vulnerabilities":128,"url":"https://junglewise.ai/threats/technologies/code-gitea-io-gitea"},{"name":"gogs.io/gogs (Go)","slug":"gogs-io-gogs","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/gogs-io-gogs"},{"name":"github.com/traefik/traefik (Go)","slug":"github-com-traefik-traefik","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik"},{"name":"github.com/usememos/memos (Go)","slug":"github-com-usememos-memos","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-usememos-memos"},{"name":"github.com/traefik/traefik/v2 (Go)","slug":"github-com-traefik-traefik-v2","vulnerabilities":73,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2"},{"name":"github.com/traefik/traefik/v3 (Go)","slug":"github-com-traefik-traefik-v3","vulnerabilities":68,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v3"}],"technology":{"hub":true,"name":"github.com/gorilla/websocket (Go)","slug":"github-com-gorilla-websocket","vendor":{"name":"Go","slug":"go","url":"https://junglewise.ai/threats/vendors/go"},"aliases":[],"description":"Go WebSocket protocol implementation for bidirectional communication between clients and servers.","url":"https://junglewise.ai/threats/technologies/github-com-gorilla-websocket"},"most_severe":[{"cvss":6.9,"slug":"gorilla-websocket-weak-prng-for-mask-key-generation-0861bf09","title":"Gorilla WebSocket weak PRNG for mask key generation","severity":"medium","exploited":false,"published_at":"2026-08-24T21:00:54+00:00","url":"https://junglewise.ai/threats/gorilla-websocket-weak-prng-for-mask-key-generation-0861bf09"},{"cvss":4,"slug":"gorilla-websocket-uses-cryptographically-weak-prng-for-websocket-mask-d9026bd8","title":"Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key","severity":"medium","exploited":false,"published_at":"2026-08-24T21:00:54+00:00","url":"https://junglewise.ai/threats/gorilla-websocket-uses-cryptographically-weak-prng-for-websocket-mask-d9026bd8"},{"cve":"CVE-2020-27813","cvss":3.1,"epss":0.0215,"slug":"cve-2020-27813-integer-overflow-in-github-com-gorilla-websocket","title":"GO-2020-0019 - Integer overflow in github.com/gorilla/websocket","severity":"low","exploited":false,"published_at":"2021-04-14T20:04:52+00:00","url":"https://junglewise.ai/threats/cve-2020-27813-integer-overflow-in-github-com-gorilla-websocket"},{"slug":"go-2026-6278-gorilla-websocket-uses-cryptographically-weak-prng-for-262c21c8","title":"GO-2026-6278 - Gorilla WebSocket Uses Cryptographically Weak PRNG for WebSocket Mask Key in github.com/gorilla/websocket","severity":"info","exploited":false,"published_at":"2026-08-25T15:00:08+00:00","url":"https://junglewise.ai/threats/go-2026-6278-gorilla-websocket-uses-cryptographically-weak-prng-for-262c21c8"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}