# CVE-2025-64767

## Summary

- **CVE ID:** CVE-2025-64767
- **Severity:** CRITICAL
- **CVSS Score:** 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-323
- **Published:** Nov 21, 2025
- **Last Modified:** Mar 12, 2026

## Description

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 (< 1.7.5)

## References

- [CNA](https://github.com/dajiaji/hpke-js/security/advisories/GHSA-73g8-5h73-26h4)
- [CNA](https://github.com/dajiaji/hpke-js/commit/94a767c9b9f37ce48d5cd86f7017d8cacd294aaf)
- [CNA](https://github.com/dajiaji/hpke-js/blob/b7fd3592c7c08660c98289d67c6bb7f891af75c4/packages/core/src/senderContext.ts#L22-L34)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._