CVE-2017-15871: The deserialize function in serialize-to-js through 1.1.1 allows attackers to cause a denial of service via ve

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HIGH 7.5REMOTEUPGRADE

CVE-2017-15871 is a high-severity flaw (CVSS 7.5) affecting serialize-to-js. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The deserialize function in serialize-to-js through 1.1.1 allows attackers to cause a denial of service via vectors involving an Immediately Invoked Function Expression "function()" substring, as demonstrated by a "function(){console.log(" call or a simple infinite loop. NOTE: the vendor agrees that denial of service can occur but notes that deserialize is explicitly listed as "harmful" within the README.md 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	1.1% (top 33%)
CISA exploited list	No
Weakness	CWE-835
Published	2017-10-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: serialize-to-js project

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

Am I affected?

Timeline

2017-10-24 20:29 UTCPublished CVE record published
2026-06-17 01:08 UTCUpdated Record last modified

serialize-to-js project serialize-to-js UPGRADE

Affected: <= 1.1.1

Fixed in: newer than 1.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls serialize-to-js

2. UPGRADE to newer than 1.1.1

npm install serialize-to-js@">1.1.1"

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-2017-15871?

serialize-to-js: upgrade to newer than 1.1.1. Exact commands for each OS are on this page.

Is CVE-2017-15871 being exploited?

CVE-2017-15871 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-2017-15871 affect?

CVE-2017-15871 affects serialize-to-js. Severity is high (CVSS 7.5). The deserialize function in serialize-to-js through 1.1.1 allows attackers to cause a denial of service via vectors involving an Immediately Invoked Function Expression "function()" substring, as demonstrated by a "function(){console.log("

How urgent is CVE-2017-15871?

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

Related CVEs

CVE-2019-16772 LOW 3.1 UPGRADE The serialize-to-js NPM package before version 3.0.1 is vulnerable to Cross-site Scripting (XSS)

References

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