CVE-2026-29046

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Source
https://cve.org/CVERecord?id=CVE-2026-29046
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29046.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-29046
Aliases
  • GHSA-r3gf-pg2c-m7mc
Published
2026-03-06T02:54:11.026Z
Modified
2026-07-08T07:32:29.501488625Z
Severity
  • 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L CVSS Calculator
Summary
TinyWeb: HTTP Header Control Character Injection into CGI Environment
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29046.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-114",
        "CWE-20",
        "CWE-74",
        "CWE-93"
    ]
}
References

Affected packages

Git / github.com/maximmasiutin/tinyweb

Affected ranges

Type
GIT
Repo
https://github.com/maximmasiutin/tinyweb
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6db65cbca13cceb1f28516fc821d0134e426cc0c
Fixed
53aa8b6e5146491d7be57920e3fc50d7a34e4d5a
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:ritlabs:tinyweb:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.04"
        }
    ]
}

Affected versions

1.*
1.98
v1.*
v1.95
v1.96
v1.97
v1.98
v1.99
v2.*
v2.03

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29046.json"