What is CVE-2025-64767?

CVE-2025-64767 is a critical-severity vulnerability in Dajiaji Hpke-js, classified under Reusing a Nonce, Key Pair in Encryption. CVSS score: 9.1/10. Published 2025-11-21.

How severe is CVE-2025-64767?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Dajiaji Hpke-js

CVE-2025-64767

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…

EPSS: 0.000 (9.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Dajiaji Hpke-js — versions < 1.7.5

Weakness classification (CWE)

CWE-323 — Reusing a Nonce, Key Pair in Encryption

References

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

Frequently asked questions

What is CVE-2025-64767?: CVE-2025-64767 is a critical-severity vulnerability in Dajiaji Hpke-js, classified under Reusing a Nonce, Key Pair in Encryption. CVSS score: 9.1/10. Published 2025-11-21.
How severe is CVE-2025-64767?: Critical severity. CVSS v3 base score is 9.1 out of 10.