CVE-2023-26142

Name: CVE-2023-26142
Creator: NVD / NIST
Published: 2023-09-12T05:15:41.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2023-26142 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. All versions of the package crow are vulnerable to HTTP Response Splitting when untrusted user input is used to build header values. Header values are not properly sanitized against CRLF Injection in the set_header and add_header functions. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

All versions of the package crow are vulnerable to HTTP Response Splitting when untrusted user input is used to build header values. Header values are not properly sanitized against CRLF Injection in the set_header and add_header functions. An attacker can add the \r\n (carriage return line feeds) characters to end the HTTP response headers and inject malicious content.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.45%

35.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Crowcpp	Crow	1.0\+5

References

https://gist.github.com/dellalibera/9247769cc90ed96c0d72ddbcba88c65cExploit, Third Party Advisory
https://security.snyk.io/vuln/SNYK-UNMANAGED-CROW-5665556Third Party Advisory
https://gist.github.com/dellalibera/9247769cc90ed96c0d72ddbcba88c65cExploit, Third Party Advisory
https://security.snyk.io/vuln/SNYK-UNMANAGED-CROW-5665556Third Party Advisory

Timeline

Published: Sep 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26142?

How severe is CVE-2023-26142?

CVE-2023-26142 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26142?

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-2023-26142?

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

Scan your code now

Source: NVD / NIST