CVE-2020-7689: Data is truncated wrong when its length is greater than 255 bytes.

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MEDIUM 5.9REMOTEUPGRADE

CVE-2020-7689 is a medium-severity flaw (CVSS 5.9) affecting node.bcrypt.js. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Data is truncated wrong when its length is greater than 255 bytes.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-190, CWE-327
Published	2020-07-01
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: node.bcrypt.js project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-07-01 14:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

node.bcrypt.js project node.bcrypt.js UPGRADE

Affected: < 5.0.0

Fixed in: 5.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls node.bcrypt.js

2. UPGRADE to 5.0.0

npm install node.bcrypt.js@">=5.0.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7689?

node.bcrypt.js: upgrade to 5.0.0. Exact commands for each OS are on this page.

Is CVE-2020-7689 being exploited?

CVE-2020-7689 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7689 affect?

CVE-2020-7689 affects node.bcrypt.js. Severity is medium (CVSS 5.9). Data is truncated wrong when its length is greater than 255 bytes.

How urgent is CVE-2020-7689?

Priority 40/100. Remotely exploitable, no login, no user action

References

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