# github.com/modelcontextprotocol/go-sdk (Go) vulnerabilities Source: https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk.json License: CC BY 4.0 with a link back 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. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 0 - All time: 5 (0 critical, 0 exploited in the wild) ## About github.com/modelcontextprotocol/go-sdk (Go) A Go software development kit for implementing the Model Context Protocol. ## Latest github.com/modelcontextprotocol/go-sdk (Go) vulnerabilities - [CVE-2026-34742: modelcontextprotocol go-sdk DNS rebinding in HTTP handlers](https://junglewise.ai/threats/cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers) (high, CVSS 8.1, published 2 Apr 2026) - [GO-2026-4770 - Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e) (info, published 23 Mar 2026) - [CVE-2026-33252: GO-2026-4773 - Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion) (low, CVSS 3.1, published 23 Mar 2026) - [Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820) (medium, CVSS 4, published 19 Mar 2026) - [CVE-2026-27896: Model Context Protocol Go SDK improper case sensitivity in JSON-RPC parsing](https://junglewise.ai/threats/cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json) (high, CVSS 7.5, published 26 Feb 2026) ## Most severe github.com/modelcontextprotocol/go-sdk (Go) vulnerabilities - [CVE-2026-34742: modelcontextprotocol go-sdk DNS rebinding in HTTP handlers](https://junglewise.ai/threats/cve-2026-34742-modelcontextprotocol-go-sdk-dns-rebinding-in-http-handlers) (high, CVSS 8.1, published 2 Apr 2026) - [CVE-2026-27896: Model Context Protocol Go SDK improper case sensitivity in JSON-RPC parsing](https://junglewise.ai/threats/cve-2026-27896-model-context-protocol-go-sdk-improper-case-sensitivity-in-json) (high, CVSS 7.5, published 26 Feb 2026) - [Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/improper-handling-of-null-unicode-character-when-parsing-json-in-github-27191820) (medium, CVSS 4, published 19 Mar 2026) - [CVE-2026-33252: GO-2026-4773 - Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/cve-2026-33252-cross-site-tool-execution-for-http-servers-without-authorizatrion) (low, CVSS 3.1, published 23 Mar 2026) - [GO-2026-4770 - Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk](https://junglewise.ai/threats/go-2026-4770-improper-handling-of-null-unicode-character-when-parsing-6cff319e) (info, published 23 Mar 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Go technologies - [github.com/mattermost/mattermost-server (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server): 297 vulnerabilities - [github.com/mattermost/mattermost-server/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6): 222 vulnerabilities - [github.com/mattermost/mattermost/server/v8 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8): 207 vulnerabilities - [github.com/mattermost/mattermost-server/v5 (Go)](https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5): 199 vulnerabilities - [stdlib (Go)](https://junglewise.ai/threats/technologies/go-stdlib): 178 vulnerabilities - [github.com/siyuan-note/siyuan/kernel (Go)](https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel): 160 vulnerabilities - [code.gitea.io/gitea (Go)](https://junglewise.ai/threats/technologies/code-gitea-io-gitea): 126 vulnerabilities - [code.vikunja.io/api (Go)](https://junglewise.ai/threats/technologies/code-vikunja-io-api): 91 vulnerabilities - [gogs.io/gogs (Go)](https://junglewise.ai/threats/technologies/gogs-io-gogs): 81 vulnerabilities - [github.com/traefik/traefik/v2 (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2): 78 vulnerabilities - [github.com/traefik/traefik (Go)](https://junglewise.ai/threats/technologies/github-com-traefik-traefik): 75 vulnerabilities - [github.com/usememos/memos (Go)](https://junglewise.ai/threats/technologies/github-com-usememos-memos): 75 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "github.com/modelcontextprotocol/go-sdk (Go) vulnerabilities", https://junglewise.ai/threats/technologies/github-com-modelcontextprotocol-go-sdk, 13 November 2026.