XSS in Ithewei Libhv
CVE-2023-26147
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Ithewei Libhv
- Ithewei/libhv — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.snyk.io/vuln/SNYK-UNMANAGED-ITHEWEILIBHV-5730768 (Third Party Advisory)
- gist.github.com/dellalibera/2be265b56b7b3b00de1a777b9dec0c7b (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-26147?
- CVE-2023-26147 is a medium-severity vulnerability in Ithewei Libhv, classified under HTTP Response Splitting. CVSS score: 5.3/10. Published 2023-09-29.
- How severe is CVE-2023-26147?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-26147 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.