CVE-2023-26121

Name: CVE-2023-26121
Creator: NVD / NIST
Published: 2023-04-11T05:15:07.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2023-26121 is a critical-severity vulnerability rated 10/10 on the CVSS scale. All versions of the package safe-eval are vulnerable to Prototype Pollution via the safeEval function, due to improper sanitization of its parameter content.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

All versions of the package safe-eval are vulnerable to Prototype Pollution via the safeEval function, due to improper sanitization of its parameter content.

Metrics

CVSS 3.1

10/10

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

EPSS Probability

1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Safe-Eval Project	Safe-Eval	<= 0.4.1

References

https://gist.github.com/seongil-wi/9d9fc0cc5b7b130419cd45827e59c4f9Exploit, Third Party Advisory
https://github.com/hacksparrow/safe-eval/issues/28Exploit, Issue Tracking, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-SAFEEVAL-3373062Exploit, Third Party Advisory
https://gist.github.com/seongil-wi/9d9fc0cc5b7b130419cd45827e59c4f9Exploit, Third Party Advisory
https://github.com/hacksparrow/safe-eval/issues/28Exploit, Issue Tracking, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-SAFEEVAL-3373062Exploit, Third Party Advisory

Timeline

Published: Apr 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26121?

All versions of the package safe-eval are vulnerable to Prototype Pollution via the safeEval function, due to improper sanitization of its parameter content.

How severe is CVE-2023-26121?

CVE-2023-26121 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26121?

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-2023-26121?

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

Scan your code now

Source: NVD / NIST