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TI-2023-08746 Aliases CVE-2023-22499GHSA-mc52-jpm2-cqh6

Interactive permission prompt spoofing in Deno

Priority HIGH 68CWE-362Published · Updated

Key facts

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

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

Summary

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Multi-threaded programs were able to spoof interactive permission prompt by rewriting the prompt to suggest that program is waiting on user confirmation to unrelated action. A malicious program could clear the terminal screen after permission prompt was shown and write a generic message. This situation impacts users who use Web Worker API and relied on interactive permission prompt. The reproduction is very timing sensitive and can’t be reliably reproduced on every try. This problem can not be exploited on systems that do not attach an interactive prompt (for example headless servers). The problem has been fixed in Deno v1.29.3; it is recommended all users update to this version. Users are advised to upgrade. Users unable to upgrade may run with --no-prompt flag to disable interactive permission prompts.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00618 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed deno (denoland): 1.29.3deno (crates.io): 1.29.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
denolanddeno1.9 to before 1.29.31.29.3Patch availableCNA
—deno (crates.io)1.9.0 to before 1.29.31.29.3Patch availableGHSA-mc52-jpm2-cqh6
  • deno Vendordenoland Affected 1.9 to before 1.29.3 Fixed in 1.29.3 Patch available CNA
  • deno (crates.io) Vendor— Affected 1.9.0 to before 1.29.3 Fixed in 1.29.3 Patch available GHSA-mc52-jpm2-cqh6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*1.9.0 to before 1.29.3Vulnerabledenoland
  • cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* Versions 1.9.0 to before 1.29.3 Vulnerable ·denoland

Remediation

  • Fix · CNA deno (denoland) Fixed in 1.29.3
  • Fix · GHSA-mc52-jpm2-cqh6 deno (crates.io) Fixed in 1.29.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-22499
  2. 2026-10-03 Alias added: GHSA-mc52-jpm2-cqh6

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • 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