Deno
41 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Deno, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.
Deno CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 1 |
| 2024-12 | 0 |
| 2025-01 | 1 |
| 2025-02 | 0 |
| 2025-03 | 0 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 5 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 3 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 2 |
| 2026-02 | 1 |
| 2026-03 | 1 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 10 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 0 |
Severity
How the 41 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical4
- High21
- Medium13
- Low2
Latest CVEs
The 15 most recently published vulnerabilities affecting Deno.
- CVE-2026-55517Deno: Denial of service via non-ASCII bytes in WebSocket response headers4.3
- CVE-2026-44726Deno: TLS retry copies stale upgrade hook, risking plaintext traffic7.4
- CVE-2026-49401Deno Permission Bypass via Unicode Normalization Mismatch on macOS (APFS)7.3
- CVE-2026-49402Deno: Command Injection via spawnSync & spawn on Windows8.1
- CVE-2026-49406Deno: BYONM module resolution allows `package.json` main path traversal to bypass `--allow-read` restrictions5.5
- CVE-2026-49411Deno Node TCPWrap numeric hostname aliases bypass --deny-net resolved-IP deny checks6.5
- CVE-2026-49983Deno: process.loadEnvFile() bypasses env permission checks and mutates process.env with only read access5.2
- CVE-2026-49860Deno: WebSocket API sandbox bypass via missing post-DNS check5.2
- CVE-2026-49859Deno: `fetch()` API sandbox bypass via missing DNS resolution check5.2
- CVE-2026-49440Deno: Miller-Rabin Primality Test Allows Zero Rounds7.4
- CVE-2026-32260Command Injection via incomplete shell metacharacter blocklist in node:child_process (bypass of CVE-2026-27190 fix)8.1
- CVE-2026-27190Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process8.1
- CVE-2026-22864Deno has an incomplete fix for command-injection prevention on Windows — case-insensitive extension bypass8.1
- CVE-2026-22863Deno node:crypto doesn't finalize cipher7.5
- CVE-2025-61787Deno is Vulnerable to Command Injection on Windows During Batch File Execution8.1
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