Browserify CreateECDH up to 4.0.4 JavaScript Implementation browser.js ECDH.prototype.computeSecret input validation

Summaryinfo

A vulnerability categorized as problematic has been discovered in Browserify CreateECDH up to 4.0.4. This impacts the function ECDH.prototype.computeSecret of the file browser.js of the component JavaScript Implementation. The manipulation results in input validation. This vulnerability is cataloged as CVE-2026-129319. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Browserify CreateECDH up to 4.0.4. It has been classified as problematic. Affected is the function ECDH.prototype.computeSecret of the file browser.js of the component JavaScript Implementation. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality. CVE summarizes:

create-ecdh is a browserifiable implementation of Node.js crypto.createECDH. In versions 4.0.4 and below, the JavaScript implementation (browser.js, used by browser bundlers and on Node.js versions without a working native crypto.createECDH) did not validate peer public keys in ECDH.prototype.computeSecret or ECDH.prototype.setPublicKey. The peer point was multiplied by the local private key without checking that it was on the configured curve or in its prime-order subgroup. An attacker who can submit public keys to a party that reuses a static private key can perform an invalid-curve or small-subgroup attack and recover the private key modulo small factors, eventually recovering the full key via the Chinese Remainder Theorem. For the ed25519 and curve25519 curves, low-order points were also accepted, which could force a predictable shared secret. On modern Node.js, create-ecdh re-exports the native implementation, which is not affected. This issue is fixed in version 4.0.5.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-129319 since 11/14/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 4.0.5 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Browserify

Name

• CreateECDH

Version

• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4

Website

• Product: https://github.com/browserify/createECDH/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion