Read the docs
TI-2025-17782 Aliases CVE-2025-24015GHSA-2x3r-hwv5-p32x

Deno's AES GCM authentication tags are not verified

Priority HIGH 73CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-347.

Summary

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions 1.46.0 through 2.1.6 have an issue that affects AES-256-GCM and AES-128-GCM in Deno in which the authentication tag is not being validated. This means tampered ciphertexts or incorrect keys might not be detected, which breaks the guarantees expected from AES-GCM. Older versions of Deno correctly threw errors in such cases, as does Node.js. Without authentication tag verification, AES-GCM degrades to essentially CTR mode, removing integrity protection. Authenticated data set with set_aad is also affected, as it is incorporated into the GCM hash (ghash) but this too is not validated, rendering AAD checks ineffective. Version 2.1.7 includes a patch that addresses this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed deno (denoland): 2.1.7deno (crates.io): 2.1.7+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
denolanddeno1.46.0 to before 2.1.72.1.7Patch availableCNA
—deno (crates.io)1.46.0 to before 2.1.72.1.7Patch availableGHSA-2x3r-hwv5-p32x
—deno_node (crates.io)0.102.0 to before 0.125.00.125.0Patch availableGHSA-2x3r-hwv5-p32x
  • deno Vendordenoland Affected 1.46.0 to before 2.1.7 Fixed in 2.1.7 Patch available CNA
  • deno (crates.io) Vendor— Affected 1.46.0 to before 2.1.7 Fixed in 2.1.7 Patch available GHSA-2x3r-hwv5-p32x
  • deno_node (crates.io) Vendor— Affected 0.102.0 to before 0.125.0 Fixed in 0.125.0 Patch available GHSA-2x3r-hwv5-p32x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*1.46.0 to before 2.1.7Vulnerabledenoland
  • cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* Versions 1.46.0 to before 2.1.7 Vulnerable ·denoland

Remediation

  • Fix · CNA deno (denoland) Fixed in 2.1.7
  • Fix · GHSA-2x3r-hwv5-p32x deno (crates.io) Fixed in 2.1.7 Advisory →
  • Fix · GHSA-2x3r-hwv5-p32x deno_node (crates.io) Fixed in 0.125.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-24015
  2. 2026-10-03 Alias added: GHSA-2x3r-hwv5-p32x

References

Exploit 1

Patch 3

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-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
  • TI-2024-18539 Deno interactive permission prompt spoofing via improper ANSI stripping CVSS 3.1HIGH 8.8
See all 37 →

Sources

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