CVE-2023-26143

Name: CVE-2023-26143
Creator: NVD / NIST
Published: 2023-09-19T05:17:10.443+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2023-26143 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Versions of the package blamer before 1.0.4 are vulnerable to Arbitrary Argument Injection via the blameByFile() API. The library does not sanitize for user input or validate the given file path conforms to a specific schema, nor does it properly pass command-line flags to the git binary using the double-dash POSIX characters (--) to communicate the end of options.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

Versions of the package blamer before 1.0.4 are vulnerable to Arbitrary Argument Injection via the blameByFile() API. The library does not sanitize for user input or validate the given file path conforms to a specific schema, nor does it properly pass command-line flags to the git binary using the double-dash POSIX characters (--) to communicate the end of options.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.92%

55.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Blamer Project	Blamer	< 1.0.4

References

https://gist.github.com/lirantal/14c3686370a86461f555d3f0703e02f9Exploit, Third Party Advisory
https://github.com/kucherenko/blamer/commit/0965877f115753371a2570f10a63c455d2b2cde3Patch
https://security.snyk.io/vuln/SNYK-JS-BLAMER-5731318Exploit, Third Party Advisory
https://gist.github.com/lirantal/14c3686370a86461f555d3f0703e02f9Exploit, Third Party Advisory
https://github.com/kucherenko/blamer/commit/0965877f115753371a2570f10a63c455d2b2cde3Patch
https://security.snyk.io/vuln/SNYK-JS-BLAMER-5731318Exploit, Third Party Advisory

Timeline

Published: Sep 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26143?

How severe is CVE-2023-26143?

CVE-2023-26143 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26143?

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-2023-26143?

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

Scan your code now

Source: NVD / NIST