CVE-2026-29046 (GCVE-0-2026-29046)
Vulnerability from cvelistv5 – Published: 2026-03-06 02:54 – Updated: 2026-03-06 16:10
VLAI
EPSS
VEX
Title
TinyWeb: HTTP Header Control Character Injection into CGI Environment
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 16:00 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/maximmasiutin/TinyWeb/security… | x_refsource_CONFIRM |
| https://github.com/maximmasiutin/TinyWeb/commit/5… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| maximmasiutin | TinyWeb |
Affected:
< 2.04
|
guessed |
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