CVE-2026-116130
HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in…
- Risk score
- 65/100
- CVSS
- 9.1 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 30 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 pat…
- Affected
- See advisory
- Fix
- Upgrade the product to 0.18 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.1 critical
- Remotely exploitable without logging in
References
Original description
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.
Last activity 30 Oct 2026. Patch Forecast updates every hour.