CVE-2023-51931: An issue in alanclarke URLite v.3.1.0 allows an attacker to cause a denial of service (DoS) via a crafted payl

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HIGH 7.5REMOTEUPGRADE

CVE-2023-51931 is a high-severity flaw (CVSS 7.5) affecting urlite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in alanclarke URLite v.3.1.0 allows an attacker to cause a denial of service (DoS) via a crafted payload to the parsing function.

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	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-1333, CWE-20
Published	2024-02-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: alanclarke

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

Am I affected?

Timeline

2024-02-16 09:15 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

alanclarke urlite UPGRADE

Affected: <= 3.1.0

Fixed in: newer than 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls urlite

2. UPGRADE to newer than 3.1.0

npm install urlite@">3.1.0"

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-2023-51931?

urlite: upgrade to newer than 3.1.0. Exact commands for each OS are on this page.

Is CVE-2023-51931 being exploited?

CVE-2023-51931 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-2023-51931 affect?

CVE-2023-51931 affects urlite. Severity is high (CVSS 7.5). An issue in alanclarke URLite v.3.1.0 allows an attacker to cause a denial of service (DoS) via a crafted payload to the parsing function.

How urgent is CVE-2023-51931?

Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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