HTTP response splitting in ithewei/libhv
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ithewei/libhv | all versions | — | No fix listed | CNA |
- ithewei/libhv Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26147
- 2026-10-03 Alias added: GHSA-fh2j-2j24-wjwp
References
More ithewei Libhv vulnerabilities
- TI-2023-11370 Cross-site scripting in ithewei/libhv CVSS 3.1MEDIUM 6.1
- TI-2023-11372 Injection in ithewei/libhv CVSS 3.1MEDIUM 5.4
Sources
- CVE-2023-26147 · CVE Program
- CVE-2023-26147 · NVD
- FIRST EPSS
- GHSA-fh2j-2j24-wjwp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences