Vulnerability Description
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/garycourt/uri-js
- https://github.com/garycourt/uri-js/blob/a1acf730b4bba3f1097c9f52e7d9d3aba8cdcaa
- https://github.com/garycourt/uri-js/issues/106
- https://www.vulncheck.com/advisories/uri-js-through-4.4.1-improper-utf-8-decodin
FAQ
What is CVE-2026-93751?
CVE-2026-93751 is a vulnerability with a CVSS score of 6.5 (MEDIUM). uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft perce...
How severe is CVE-2026-93751?
CVE-2026-93751 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-93751?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.