Deno vulnerabilities: known CVEs & security history
Deno · Language / Runtime · 28 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Deno release lines — 28 in total. A CVE here doesn't mean your version is affected — check Deno's current status and the safe version to run.
Known Deno CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2022-24783 | critical | 10 | 1% | 2022 |
| CVE-2023-28445 | critical | 9.9 | 1% | 2023 |
| CVE-2021-32619 | critical | 9.8 | 1% | 2021 |
| CVE-2025-48935 | critical | 9.1 | 0% | 2025 |
| CVE-2024-27936 | high | 8.8 | 1% | 2024 |
| CVE-2023-28446 | high | 8.8 | 1% | 2023 |
| CVE-2023-33966 | high | 8.6 | 1% | 2023 |
| CVE-2024-34346 | high | 8.4 | 0% | 2024 |
| CVE-2024-27934 | high | 8.4 | 0% | 2024 |
| CVE-2021-41641 | high | 8.4 | 0% | 2022 |
| CVE-2024-27933 | high | 8.2 | 2% | 2024 |
| CVE-2026-32260 | high | 8.1 | 1% | 2026 |
| CVE-2026-27190 | high | 8.1 | 2% | 2026 |
| CVE-2026-22864 | high | 8.1 | 1% | 2026 |
| CVE-2025-61787 | high | 8.1 | 2% | 2025 |
| CVE-2024-32477 | high | 7.7 | 0% | 2024 |
| CVE-2024-37150 | high | 7.6 | 0% | 2024 |
| CVE-2026-22863 | high | 7.5 | 0% | 2026 |
| CVE-2023-22499 | high | 7.5 | 1% | 2023 |
| CVE-2024-27935 | high | 7.2 | 1% | 2024 |
| CVE-2024-27931 | medium | 5.8 | 0% | 2024 |
| CVE-2025-48934 | medium | 5.3 | 0% | 2025 |
| CVE-2025-48888 | medium | 5.3 | 0% | 2025 |
| CVE-2025-24015 | medium | 5.3 | 0% | 2025 |
| CVE-2023-26103 | medium | 5.3 | 1% | 2023 |
| CVE-2024-27932 | medium | 4.6 | 1% | 2024 |
| CVE-2025-61786 | low | 3.3 | 0% | 2025 |
| CVE-2025-61785 | low | 3.3 | 0% | 2025 |
Is my Deno version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Deno version → · Monitor Deno for new CVEs →
Deno vulnerabilities — frequently asked
How many known vulnerabilities does Deno have?
IsItPatched tracks 28 CVEs for Deno. 4 are critical-severity and 16 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Deno have any actively-exploited vulnerabilities?
None of Deno's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe Deno vulnerability?
Among tracked issues, CVE-2022-24783 (CRITICAL, CVSS 10) ranks highest — a Improper privilege management weakness.
Is Deno safe to use?
It depends on the version. The latest supported Deno release (2.8.3) clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Deno security status · Deno end-of-life · actively-exploited CVEs. Always verify against Deno's advisories — see our disclaimer.