CVE-2025-64767: Dajiaji Hpke-Js

Critical severity, CVSS 9.1. EPSS: 0.2% chance of exploitation in the next 30 days.

hpke-js is a Hybrid Public Key Encryption (HPKE) module built on top of Web Cryptography API. Prior to version 1.7.5, the public SenderContext Seal() API has a race condition which allows for the same AEAD nonce to be re-used for multiple Seal() calls. This can lead to complete loss of Confidentiality and Integrity of the produced messages. This issue has been patched in version 1.7.5.

Affected products

• Dajiaji Hpke-Js: before 1.7.5 (fixed in 1.7.5)

Published 2025-11-21. Last modified 2026-06-17.