MEDIUM 6.9 NVD
CVE-2026-93751
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 m
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.
References
- https://github.com/garycourt/uri-js
- https://github.com/garycourt/uri-js/blob/a1acf730b4bba3f1097c9f52e7d9d3aba8cdcaae/src/uri.
- https://github.com/garycourt/uri-js/issues/106
- https://www.vulncheck.com/advisories/uri-js-through-4.4.1-improper-utf-8-decoding-via-pctd
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-09-18 via NVD.
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