crypto-es PBKDF2 1,000 times weaker than specified in 1993 and 1.3M times weaker than current standard
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-327.
Summary
CryptoES is a cryptography algorithms library compatible with ES6 and TypeScript. Prior to version 2.1.0, CryptoES PBKDF2 is 1,000 times weaker than originally specified in 1993, and at least 1,300,000 times weaker than current industry standard. This is because it both defaults to SHA1, a cryptographic hash algorithm considered insecure since at least 2005, and defaults to one single iteration, a 'strength' or 'difficulty' value specified at 1,000 when specified in 1993. PBKDF2 relies on iteration count as a countermeasure to preimage and collision attacks. If used to protect passwords, the impact is high. If used to generate signatures, the impact is high. Version 2.1.0 contains a patch for this issue. As a workaround, configure CryptoES to use SHA256 with at least 250,000 iterations.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| entronad | crypto-es | before 2.1.0 | 2.1.0 | Patch available | CNA |
| — | crypto-es (npm) | before 2.1.0 | 2.1.0 | Patch available | GHSA-mpj8-q39x-wq5h |
- crypto-es Vendorentronad Affected before 2.1.0 Fixed in 2.1.0 Patch available CNA
- crypto-es (npm) Vendor— Affected before 2.1.0 Fixed in 2.1.0 Patch available GHSA-mpj8-q39x-wq5h
Remediation
- Fix · CNA crypto-es (entronad) Fixed in 2.1.0
- Fix · GHSA-mpj8-q39x-wq5h crypto-es (npm) Fixed in 2.1.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-46133
- 2026-10-03 Alias added: GHSA-mpj8-q39x-wq5h
References
Sources
- CVE-2023-46133 · CVE Program
- CVE-2023-46133 · NVD
- FIRST EPSS
- GHSA-mpj8-q39x-wq5h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences