{"schema_version":1,"title":"github.com/modelcontextprotocol/go-sdk (Go) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in github.com/modelcontextprotocol/go-sdk (Go): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-34742, was published on 2 April 2026.","url":"https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk","json_url":"https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk.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-modelcontextprotocol-go-sdk","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":5,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":5},"latest":[{"cve":"CVE-2026-34742","cvss":8.1,"epss":0.0066,"slug":"cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers","title":"modelcontextprotocol go-sdk DNS rebinding in HTTP handlers","severity":"high","exploited":false,"published_at":"2026-04-02T19:21:33.023+00:00","url":"https://junglewise.ai/threats/cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers"},{"slug":"go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e","title":"GO-2026-4770 - Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk","severity":"info","exploited":false,"published_at":"2026-03-23T18:14:51+00:00","url":"https://junglewise.ai/threats/go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e"},{"cve":"CVE-2026-33252","cvss":3.1,"epss":0.0021,"slug":"cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion","title":"GO-2026-4773 - Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk","severity":"low","exploited":false,"published_at":"2026-03-23T18:14:51+00:00","url":"https://junglewise.ai/threats/cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion"},{"cvss":4,"slug":"improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820","title":"Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk","severity":"medium","exploited":false,"published_at":"2026-03-19T12:44:07+00:00","url":"https://junglewise.ai/threats/improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820"},{"cve":"CVE-2026-27896","cvss":7.5,"epss":0.0046,"slug":"cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json","title":"Model Context Protocol Go SDK improper case sensitivity in JSON-RPC parsing","severity":"high","exploited":false,"published_at":"2026-02-26T01:16:25.63+00:00","url":"https://junglewise.ai/threats/cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json"}],"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":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":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":0},{"week":"2026-09-21","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/modelcontextprotocol/go-sdk (Go)","slug":"github-com-modelcontextprotocol-go-sdk","vendor":{"name":"Go","slug":"go","url":"https://junglewise.ai/threats/vendors/go"},"aliases":[],"homepage":"https://modelcontextprotocol.io","repo_url":"https://github.com/modelcontextprotocol/go-sdk","description":"A Go software development kit for implementing the Model Context Protocol.","url":"https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk"},"most_severe":[{"cve":"CVE-2026-34742","cvss":8.1,"epss":0.0066,"slug":"cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers","title":"modelcontextprotocol go-sdk DNS rebinding in HTTP handlers","severity":"high","exploited":false,"published_at":"2026-04-02T19:21:33.023+00:00","url":"https://junglewise.ai/threats/cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers"},{"cve":"CVE-2026-27896","cvss":7.5,"epss":0.0046,"slug":"cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json","title":"Model Context Protocol Go SDK improper case sensitivity in JSON-RPC parsing","severity":"high","exploited":false,"published_at":"2026-02-26T01:16:25.63+00:00","url":"https://junglewise.ai/threats/cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json"},{"cvss":4,"slug":"improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820","title":"Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk","severity":"medium","exploited":false,"published_at":"2026-03-19T12:44:07+00:00","url":"https://junglewise.ai/threats/improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820"},{"cve":"CVE-2026-33252","cvss":3.1,"epss":0.0021,"slug":"cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion","title":"GO-2026-4773 - Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk","severity":"low","exploited":false,"published_at":"2026-03-23T18:14:51+00:00","url":"https://junglewise.ai/threats/cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion"},{"slug":"go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e","title":"GO-2026-4770 - Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk","severity":"info","exploited":false,"published_at":"2026-03-23T18:14:51+00:00","url":"https://junglewise.ai/threats/go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}