CVE-2026-116130
Low risk· EPSS 26%Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
In HTTP::Parser::XS versions before 0.18 for Perl, parse_http_request truncates PATH_INFO at an encoded NUL byte. The XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decoded from %00; the pure-Perl backend is not affected.
Risk Assessment
A remote attacker can send a path that a proxy or filter checks in full while the application routes on a shorter one.
Recommendation
Upgrade HTTP::Parser::XS to version 0.18 or later.
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Original NVD description (English source)
HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request. The XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decoded from %00. The pure-Perl backend is not affected. A remote attacker can send a path that a proxy or filter checks in full while the application routes on a shorter one.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS