What’s Vulnerable › Vulnerabilities

CVE-2023-26147

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-09-29 · updated 2026-06-17
• Weakness: CWE-113

Description

All versions of the package ithewei/libhv are vulnerable to HTTP Response Splitting when untrusted user input is used to build headers values. An attacker can add the \r\n (carriage return line feeds) characters to end the HTTP response headers and inject malicious content, like for example additional headers or new response body, leading to a potential XSS vulnerability.

Affected products

• ithewei/libhv: all versions

References

• https://gist.github.com/dellalibera/2be265b56b7b3b00de1a777b9dec0c7b
• https://security.snyk.io/vuln/SNYK-UNMANAGED-ITHEWEILIBHV-5730768
• https://gist.github.com/dellalibera/2be265b56b7b3b00de1a777b9dec0c7b
• https://security.snyk.io/vuln/SNYK-UNMANAGED-ITHEWEILIBHV-5730768

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