CVE-2020-7689
Insecure Encryption
Data is truncated wrong when its length is greater than 255 bytes.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Insecure Encryption
Data is truncated wrong when its length is greater than 255 bytes.
- Record
CVE-2020-7689- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
EUVDEUVD-2020-0596
Data is truncated wrong when its length is greater than 255 bytes.
- Record
EUVD-2020-0596- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5wg4-74h6-q47v
Integer Overflow or Wraparound and Use of a Broken or Risky Cryptographic Algorithm in bcrypt
In bcrypt (npm package) before version 5.0.0, data is truncated wrong when its length is greater than 255 bytes.
- Record
GHSA-5wg4-74h6-q47v- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-190, CWE-327
- Updated
- 2026-11-02
NVD
Data is truncated wrong when its length is greater than 255 bytes.
- Record
CVE-2020-7689- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-190, CWE-327
- Updated
- 2026-11-02
OSV
Data is truncated wrong when its length is greater than 255 bytes.
- Record
CVE-2020-7689- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-5wg4-74h6-q47v
Integer Overflow or Wraparound and Use of a Broken or Risky Cryptographic Algorithm in bcrypt
In bcrypt (npm package) before version 5.0.0, data is truncated wrong when its length is greater than 255 bytes.
- Record
GHSA-5wg4-74h6-q47v- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-190, CWE-327
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
bcryptnpm |
before 5.0.0 | 5.0.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-7689 is a medium vulnerability (CVSS 5.9) in Node.bcrypt.js Project Node.bcrypt.js, published July 1, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in bcrypt 5.0.0.