Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N C H H N 8.4 .0019 8.6 —
AFFECTED Product Versions Fixed deno < 2.7.14 – —
TIMELINE May 29 Reserved by GitHub_M Jun 23 EXPLOIT PUBLISHED — CVE-2026-49401 (denoland deno). Public exploit reference added. Jun 23 Published (CNA: GitHub_M)
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.14, Deno's permission system enforces filesystem and execution restrictions by comparing the requested path against the path supplied to --deny-read, --deny-write, --deny-run, or --deny-ffi. On macOS, that comparison was done at the raw-byte level while the APFS filesystem treats different Unicode spellings of the same name as the same file. That means a program could reach a denied path by spelling it differently than the deny rule. This vulnerability is fixed in 2.7.14.
| Date | Event | Detail |
|---|---|---|
| May 29, 2026 | Reserved | Reserved by GitHub_M |
| June 23, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-49401 (denoland deno). Public exploit reference added. |
| June 23, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| denoland | deno | — | < 2.7.14 | — |
Authoritative record: CVE-2026-49401 at cve.org
Vendors: denoland
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49401 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.