CVE-2019-5479: An unintended require vulnerability in <v0.5.5 larvitbase-api may allow an attacker to load arbitrary non-prod

Q: How urgent is CVE-2019-5479?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2019-5479 is a high-severity flaw (CVSS 7.5) affecting larvitbase. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unintended require vulnerability in <v0.5.5 larvitbase-api may allow an attacker to load arbitrary non-production code (JavaScript file).

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-98, CWE-829
Published	2019-09-03
Last modified	2026-06-17

Publisher (CNA): HackerOne · Vendor: larvit

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

Am I affected?

Timeline

2019-09-03 20:15 UTCPublished CVE record published
2026-06-17 02:37 UTCUpdated Record last modified

larvit larvitbase UPGRADE

Affected: < 0.5.5

Fixed in: 0.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls larvitbase

2. UPGRADE to 0.5.5

npm install larvitbase@">=0.5.5"

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-2019-5479?

larvitbase: upgrade to 0.5.5. Exact commands for each OS are on this page.

Is CVE-2019-5479 being exploited?

CVE-2019-5479 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-2019-5479 affect?

CVE-2019-5479 affects larvitbase. Severity is high (CVSS 7.5). An unintended require vulnerability in <v0.5.5 larvitbase-api may allow an attacker to load arbitrary non-production code (JavaScript file).

How urgent is CVE-2019-5479?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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