CVE-2026-129319: browserify createECDH · Improper Input Validation
Affects browserify createECDHSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 4.0.5 soon.
Data as of 14 Nov 2026, 07:03 UTC
Thin evidence
One scorer or none| CNA (harborist) | CVSS 4.0 | 8.2 |
|---|---|---|
| CNA (harborist) | CVSS 3.1 | 5.9 |
- Patch
- Available – fixed in 4.0.5
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 14 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade createECDH and create-ecdh to 4.0.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| createECDHcreate-ecdh | Affected
| Fixed in
|
npmcreate-ecdhpkg:npm/create-ecdhOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade create-ecdh to version 4.0.5 or later, where the input validation flaw is fixed. On modern Node.js versions that use the native crypto.createECDH implementation, this issue does not apply. No other mitigations are indicated by the vendor advisory.
Description
CVE-2026-129319 is a high-severity vulnerability in the create-ecdh library (versions before 4.0.5) used by browserify. The flaw involves improper input validation of peer public keys in the ECDH key agreement process, allowing attackers to submit crafted keys that can lead to private key recovery or predictable shared secrets. This issue affects the JavaScript implementation used on Node.js versions lacking native crypto.createECDH support. The vulnerability is fixed in version 4.0.5.