curl: Path Traversal Bypass in file:// URLs Due to Incomplete URL-Encoded Path Normalization

Summary: The dedotdotify function in lib/urlapi.c is responsible for removing path traversal sequences ../ and ./ from URLs according to RFC 3986. However, the function only recognizes literal forward slashes / when identifying path segments and does not handle URL-encoded slashes %2f or %2F. Thi...

curl: Denial of Service (DoS) vulnerability in dedotdotify() URL path normalization

Summary A Denial of Service DoS vulnerability exists in the dedotdotify function in lib/urlapi.c that can cause excessive CPU consumption due to On² time complexity when processing URLs with malicious path patterns containing many ../ sequences. Affected Component - Component: libcurl URL API -...