Vulnerability Details CVE-2026-29046
TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI execution context. This issue has been patched in version 2.04.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 39.7%
CVSS Severity
CVSS v3 Score 8.2
References
Products affected by CVE-2026-29046
-
cpe:2.3:a:ritlabs:tinyweb:0.5
-
cpe:2.3:a:ritlabs:tinyweb:0.6
-
cpe:2.3:a:ritlabs:tinyweb:0.7
-
cpe:2.3:a:ritlabs:tinyweb:0.9
-
cpe:2.3:a:ritlabs:tinyweb:1.0
-
cpe:2.3:a:ritlabs:tinyweb:1.3
-
cpe:2.3:a:ritlabs:tinyweb:1.4
-
cpe:2.3:a:ritlabs:tinyweb:1.5
-
cpe:2.3:a:ritlabs:tinyweb:1.6
-
cpe:2.3:a:ritlabs:tinyweb:1.8
-
cpe:2.3:a:ritlabs:tinyweb:1.9
-
cpe:2.3:a:ritlabs:tinyweb:1.94
-
cpe:2.3:a:ritlabs:tinyweb:1.95
-
cpe:2.3:a:ritlabs:tinyweb:1.96
-
cpe:2.3:a:ritlabs:tinyweb:1.97
-
cpe:2.3:a:ritlabs:tinyweb:1.98
-
cpe:2.3:a:ritlabs:tinyweb:1.99