Vulnerability details

CVE-2025-64767

dajiaji hpke-js

hpke-js reuses AEAD nonces

CVSS 3.1

9.1Critical

Official 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.

CVSS scores

Score	Version	Source	Vector
9.1Critical	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
dajiaji	hpke-js	< 1.7.5	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2025-11-21
Last updated: 2025-11-21
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.22%

Probability of exploitation in 30 days

13.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-323
Reusing a Nonce, Key Pair in Encryption