{"schema_version":1,"title":"deno (crates.io) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 11 vulnerabilities in deno (crates.io): 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-2026-55517, was published on 23 June 2026.","url":"https://junglewise.ai/threats/technologies/deno","json_url":"https://junglewise.ai/threats/technologies/deno.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/deno","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":5,"all_time":11,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":11},"latest":[{"cve":"CVE-2026-55517","cvss":4.3,"slug":"cve-2026-55517-deno-denial-of-service-via-non-ascii-websocket-response-headers","title":"Deno denial of service via non-ASCII WebSocket response headers","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:09.787+00:00","url":"https://junglewise.ai/threats/cve-2026-55517-deno-denial-of-service-via-non-ascii-websocket-response-headers"},{"cve":"CVE-2026-49983","cvss":5.2,"slug":"cve-2026-49983-deno-environment-permission-bypass-in-process-loadenvfile","title":"Deno environment permission bypass in process.loadEnvFile","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:04.19+00:00","url":"https://junglewise.ai/threats/cve-2026-49983-deno-environment-permission-bypass-in-process-loadenvfile"},{"cve":"CVE-2026-49860","cvss":5.2,"slug":"cve-2026-49860-deno-sandbox-bypass-via-missing-post-dns-check-in-websocket-api","title":"Deno sandbox bypass via missing post-DNS check in WebSocket API","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:04.053+00:00","url":"https://junglewise.ai/threats/cve-2026-49860-deno-sandbox-bypass-via-missing-post-dns-check-in-websocket-api"},{"cve":"CVE-2026-49859","cvss":5.2,"slug":"cve-2026-49859-deno-network-restriction-bypass-in-fetch-api","title":"Deno network restriction bypass in fetch API","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.927+00:00","url":"https://junglewise.ai/threats/cve-2026-49859-deno-network-restriction-bypass-in-fetch-api"},{"cve":"CVE-2026-49440","cvss":7.4,"slug":"cve-2026-49440-deno-missing-cryptographic-rounds-in-node-crypto-checkprime","title":"Deno missing cryptographic rounds in node:crypto checkPrime","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.563+00:00","url":"https://junglewise.ai/threats/cve-2026-49440-deno-missing-cryptographic-rounds-in-node-crypto-checkprime"},{"cve":"CVE-2026-49411","cvss":6.5,"slug":"cve-2026-49411-deno-network-permission-bypass-via-numeric-hostname-aliases-in","title":"Deno network permission bypass via numeric hostname aliases in Node.js compatibility layer","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.44+00:00","url":"https://junglewise.ai/threats/cve-2026-49411-deno-network-permission-bypass-via-numeric-hostname-aliases-in"},{"cve":"CVE-2026-49406","cvss":5.5,"slug":"cve-2026-49406-deno-path-traversal-and-permission-bypass-in-byonm-module","title":"Deno path traversal and permission bypass in BYONM module resolution","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.31+00:00","url":"https://junglewise.ai/threats/cve-2026-49406-deno-path-traversal-and-permission-bypass-in-byonm-module"},{"cve":"CVE-2026-49402","cvss":8.1,"slug":"cve-2026-49402-deno-os-command-injection-in-node-child-process-on-windows","title":"Deno OS command injection in node:child_process on Windows","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.177+00:00","url":"https://junglewise.ai/threats/cve-2026-49402-deno-os-command-injection-in-node-child-process-on-windows"},{"cve":"CVE-2026-49401","cvss":7.3,"slug":"cve-2026-49401-deno-permission-bypass-via-unicode-normalization-mismatch-on","title":"Deno permission bypass via Unicode normalization mismatch on macOS","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.033+00:00","url":"https://junglewise.ai/threats/cve-2026-49401-deno-permission-bypass-via-unicode-normalization-mismatch-on"},{"cve":"CVE-2026-44726","cvss":7.4,"slug":"cve-2026-44726-deno-plaintext-data-transmission-in-node-js-tls-compatibility","title":"Deno plaintext data transmission in Node.js TLS compatibility layer","severity":"high","exploited":false,"published_at":"2026-06-23T18:17:48.623+00:00","url":"https://junglewise.ai/threats/cve-2026-44726-deno-plaintext-data-transmission-in-node-js-tls-compatibility"},{"cve":"CVE-2026-22864","cvss":8.1,"epss":0.0068,"slug":"cve-2026-22864-deno-command-injection-via-case-insensitive-extension-bypass-on","title":"Deno command injection via case-insensitive extension bypass on Windows","severity":"high","exploited":false,"published_at":"2026-01-16T15:49:38+00:00","url":"https://junglewise.ai/threats/cve-2026-22864-deno-command-injection-via-case-insensitive-extension-bypass-on"}],"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":"surrealdb (crates.io)","slug":"surrealdb","vulnerabilities":59,"url":"https://junglewise.ai/threats/technologies/surrealdb"},{"name":"zebrad (crates.io)","slug":"zebrad","vulnerabilities":26,"url":"https://junglewise.ai/threats/technologies/zebrad"},{"name":"rustfs (crates.io)","slug":"rustfs","vulnerabilities":14,"url":"https://junglewise.ai/threats/technologies/rustfs"},{"name":"deepseek-tui (crates.io)","slug":"deepseek-tui","vulnerabilities":13,"url":"https://junglewise.ai/threats/technologies/deepseek-tui"},{"name":"wasmtime (crates.io)","slug":"wasmtime","vulnerabilities":11,"url":"https://junglewise.ai/threats/technologies/wasmtime"},{"name":"codewhale-tui (crates.io)","slug":"codewhale-tui","vulnerabilities":9,"url":"https://junglewise.ai/threats/technologies/codewhale-tui"},{"name":"mise (crates.io)","slug":"mise","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/mise"},{"name":"nimiq-primitives (crates.io)","slug":"nimiq-primitives","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/nimiq-primitives"},{"name":"wasm3 (crates.io)","slug":"wasm3","vulnerabilities":5,"url":"https://junglewise.ai/threats/technologies/wasm3"},{"name":"actix-web (crates.io)","slug":"actix-web","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/actix-web"},{"name":"diesel (crates.io)","slug":"diesel","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/diesel"},{"name":"nimiq-blockchain (crates.io)","slug":"nimiq-blockchain","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/nimiq-blockchain"}],"technology":{"hub":true,"name":"deno (crates.io)","slug":"deno","vendor":{"name":"crates.io","slug":"crates-io","url":"https://junglewise.ai/threats/vendors/crates-io"},"aliases":[],"homepage":"https://deno.com/","repo_url":"https://github.com/denoland/deno","description":"Deno is a runtime for JavaScript, TypeScript, and WebAssembly based on the V8 JavaScript engine and the Rust programming language.","url":"https://junglewise.ai/threats/technologies/deno"},"most_severe":[{"cve":"CVE-2026-22864","cvss":8.1,"epss":0.0068,"slug":"cve-2026-22864-deno-command-injection-via-case-insensitive-extension-bypass-on","title":"Deno command injection via case-insensitive extension bypass on Windows","severity":"high","exploited":false,"published_at":"2026-01-16T15:49:38+00:00","url":"https://junglewise.ai/threats/cve-2026-22864-deno-command-injection-via-case-insensitive-extension-bypass-on"},{"cve":"CVE-2026-49402","cvss":8.1,"slug":"cve-2026-49402-deno-os-command-injection-in-node-child-process-on-windows","title":"Deno OS command injection in node:child_process on Windows","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.177+00:00","url":"https://junglewise.ai/threats/cve-2026-49402-deno-os-command-injection-in-node-child-process-on-windows"},{"cve":"CVE-2026-49440","cvss":7.4,"slug":"cve-2026-49440-deno-missing-cryptographic-rounds-in-node-crypto-checkprime","title":"Deno missing cryptographic rounds in node:crypto checkPrime","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.563+00:00","url":"https://junglewise.ai/threats/cve-2026-49440-deno-missing-cryptographic-rounds-in-node-crypto-checkprime"},{"cve":"CVE-2026-44726","cvss":7.4,"slug":"cve-2026-44726-deno-plaintext-data-transmission-in-node-js-tls-compatibility","title":"Deno plaintext data transmission in Node.js TLS compatibility layer","severity":"high","exploited":false,"published_at":"2026-06-23T18:17:48.623+00:00","url":"https://junglewise.ai/threats/cve-2026-44726-deno-plaintext-data-transmission-in-node-js-tls-compatibility"},{"cve":"CVE-2026-49401","cvss":7.3,"slug":"cve-2026-49401-deno-permission-bypass-via-unicode-normalization-mismatch-on","title":"Deno permission bypass via Unicode normalization mismatch on macOS","severity":"high","exploited":false,"published_at":"2026-06-23T18:18:03.033+00:00","url":"https://junglewise.ai/threats/cve-2026-49401-deno-permission-bypass-via-unicode-normalization-mismatch-on"},{"cve":"CVE-2026-49411","cvss":6.5,"slug":"cve-2026-49411-deno-network-permission-bypass-via-numeric-hostname-aliases-in","title":"Deno network permission bypass via numeric hostname aliases in Node.js compatibility layer","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.44+00:00","url":"https://junglewise.ai/threats/cve-2026-49411-deno-network-permission-bypass-via-numeric-hostname-aliases-in"},{"cve":"CVE-2026-49406","cvss":5.5,"slug":"cve-2026-49406-deno-path-traversal-and-permission-bypass-in-byonm-module","title":"Deno path traversal and permission bypass in BYONM module resolution","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.31+00:00","url":"https://junglewise.ai/threats/cve-2026-49406-deno-path-traversal-and-permission-bypass-in-byonm-module"},{"cve":"CVE-2026-49983","cvss":5.2,"slug":"cve-2026-49983-deno-environment-permission-bypass-in-process-loadenvfile","title":"Deno environment permission bypass in process.loadEnvFile","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:04.19+00:00","url":"https://junglewise.ai/threats/cve-2026-49983-deno-environment-permission-bypass-in-process-loadenvfile"},{"cve":"CVE-2026-49860","cvss":5.2,"slug":"cve-2026-49860-deno-sandbox-bypass-via-missing-post-dns-check-in-websocket-api","title":"Deno sandbox bypass via missing post-DNS check in WebSocket API","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:04.053+00:00","url":"https://junglewise.ai/threats/cve-2026-49860-deno-sandbox-bypass-via-missing-post-dns-check-in-websocket-api"},{"cve":"CVE-2026-49859","cvss":5.2,"slug":"cve-2026-49859-deno-network-restriction-bypass-in-fetch-api","title":"Deno network restriction bypass in fetch API","severity":"medium","exploited":false,"published_at":"2026-06-23T18:18:03.927+00:00","url":"https://junglewise.ai/threats/cve-2026-49859-deno-network-restriction-bypass-in-fetch-api"}],"generated_at":"2026-09-26T10:22:00.132594+00:00"}