CVE-2025-64767
Critical
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.
SeverityCritical
CVSS9.1
Exploit probability—
Product@hpke/core
PublishedNov 21, 2025
First seenNov 21, 2025
Weakness typeCWE-323CWE-323
How to fix
Update
- @hpke/core1.7.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| @hpke/corenpm | v < 1.7.5 | 1.7.5 |
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