CVE-2023-26104: All versions of the package lite-web-server are vulnerable to Denial of Service (DoS) when an attacker sends a

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HIGH 7.5REMOTEMITIGATE

CVE-2023-26104 is a high-severity flaw (CVSS 7.5) affecting lite-web-server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of the package lite-web-server are vulnerable to Denial of Service (DoS) when an attacker sends an HTTP request and includes control characters that the decodeURI() function is unable to parse.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-400
Published	2023-02-25
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: lite-web-server project

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

Am I affected?

Timeline

2023-02-25 05:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

lite-web-server project lite-web-server MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls lite-web-server

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2023-26104?

lite-web-server: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26104 being exploited?

CVE-2023-26104 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-2023-26104 affect?

CVE-2023-26104 affects lite-web-server. Severity is high (CVSS 7.5). All versions of the package lite-web-server are vulnerable to Denial of Service (DoS) when an attacker sends an HTTP request and includes control characters that the decodeURI() function is unable to parse.

How urgent is CVE-2023-26104?

Priority 53/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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