CVE-2021-39157

Name: CVE-2021-39157
Creator: NVD / NIST
Published: 2021-08-24T19:15:32.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.07%

Last modified Jun 17, 2026

CVE-2021-39157 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. detect-character-encoding is an open source character encoding inspection library. In detect-character-encoding v0.6.0 and earlier, data matching no charset causes the Node.js process to crash. EPSS estimates a 2.07% chance of exploitation in the next 30 days.

Description

detect-character-encoding is an open source character encoding inspection library. In detect-character-encoding v0.6.0 and earlier, data matching no charset causes the Node.js process to crash. The problem has been patched in [detect-character-encoding v0.7.0](https://github.com/sonicdoe/detect-character-encoding/releases/tag/v0.7.0). No workaround are available and all users should update to resolve this issue.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

2.07%

79.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Detect-Character-Encoding Project	Detect-Character-Encoding	< 0.7.0

References

https://github.com/sonicdoe/detect-character-encoding/commit/992a11007fff6cfd40b952150ab8d30410c4a20aPatch, Third Party Advisory
https://github.com/sonicdoe/detect-character-encoding/issues/15Exploit, Third Party Advisory
https://github.com/sonicdoe/detect-character-encoding/security/advisories/GHSA-jqfh-8hw5-fqjrExploit, Third Party Advisory
https://github.com/sonicdoe/detect-character-encoding/commit/992a11007fff6cfd40b952150ab8d30410c4a20aPatch, Third Party Advisory
https://github.com/sonicdoe/detect-character-encoding/issues/15Exploit, Third Party Advisory
https://github.com/sonicdoe/detect-character-encoding/security/advisories/GHSA-jqfh-8hw5-fqjrExploit, Third Party Advisory

Timeline

Published: Aug 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39157?

How severe is CVE-2021-39157?

CVE-2021-39157 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.07% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39157?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39157?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST