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 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.

CVSS 3.1

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWE

CWE-323

Published

2025-11-21

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Packages (OSV)

References

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

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