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TI-2021-18347 Aliases CVE-2021-41641GHSA-67hm-27mx-9cg7

Deno <=1.14.0 file sandbox does not handle symbolic links correctly.

Priority LOW 37CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

Deno <=1.14.0 file sandbox does not handle symbolic links correctly. When running Deno with specific write access, the Deno.symlink method can be used to gain access to any directory.

Why it matters now

EPSS 0.00388 33rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed deno (crates.io): 1.16.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—deno (crates.io)before 1.16.01.16.0Patch availableGHSA-67hm-27mx-9cg7
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • deno (crates.io) Vendor— Affected before 1.16.0 Fixed in 1.16.0 Patch available GHSA-67hm-27mx-9cg7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*1.10.3 – 1.14.0Vulnerabledenoland
  • cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* Versions 1.10.3 – 1.14.0 Vulnerable ·denoland

Remediation

  • Fix · GHSA-67hm-27mx-9cg7 deno (crates.io) Fixed in 1.16.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41641
  2. 2026-10-03 Alias added: GHSA-67hm-27mx-9cg7

References

Exploit 2

Advisory 1

Other 2

  • TI-2026-21627 Deno has a Command Injection via Incomplete shell metacharacter blocklist in node:child_process CVSS 3.1CRITICAL 9.8
  • TI-2025-17782 Deno's AES GCM authentication tags are not verified CVSS 4.0HIGH 7.7
  • TI-2024-18537 *const c_void / ExternalPointer unsoundness leading to use-after-free CVSS 3.1HIGH 8.8
  • TI-2024-18536 Deno arbitrary file descriptor close via `op_node_ipc_pipe()` leading to permission prompt bypass CVSS 3.1HIGH 8.8
  • TI-2023-12990 Deno is vulnerable to interactive `run` permission prompt spoofing via improper ANSI neutralization CVSS 3.1HIGH 8.8
  • TI-2023-11328 Regular expression denial of service in deno CVSS 3.1HIGH 7.5
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences