Improper Verification of Cryptographic Signature in Deno - CVE-2025-24015
Published: April 23, 2026
Vulnerability identifier: #VU127059
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-24015
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Deno Land
Affected software:
Deno
Deno
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass ciphertext integrity checks.
The vulnerability exists due to improper cryptographic verification in the AES-GCM decryption implementation when processing AES-128-GCM or AES-256-GCM ciphertexts. A remote attacker can supply tampered ciphertext, an incorrect key, or modified authenticated data to bypass ciphertext integrity checks.
Authenticated data provided with set_aad is also not effectively validated.
How to mitigate CVE-2025-24015
Install security update from vendor's website.