CVE-2025-24015 – Deno AES-GCM Authentication Tag Validation Bypass

CVE ID : CVE-2025-24015

Published : June 3, 2025, 11:15 p.m. | 1 hour, 15 minutes ago

Description : Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. 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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…