Nonce Reuse Affecting @hpke/core package, versions <1.7.5
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-HPKECORE-14101852
- published23 Nov 2025
- disclosed20 Nov 2025
- creditFilip Skokan
Introduced: 20 Nov 2025
NewCVE-2025-64767 (opens in a new tab)How to fix?
Upgrade @hpke/core to version 1.7.5 or higher.
Overview
@hpke/core is an A Hybrid Public Key Encryption (HPKE) core module for various JavaScript runtimes
Affected versions of this package are vulnerable to Nonce Reuse via the public SenderContext Seal() API. An attacker can compromise the confidentiality and integrity of encrypted messages by triggering concurrent calls that cause the reuse of AEAD nonces, allowing for potential message decryption or manipulation.