Is CVE-2026-29046 actively exploited?

No active exploitation of CVE-2026-29046 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-29046 be exploited remotely?

Yes. CVE-2026-29046 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-29046?

CVE-2026-29046 has a CVSS score of 9.2 (CRITICAL).

HOME VULNERABILITIESCVE-2026-29046

CRITICAL

CVE-2026-29046

CWE-20Published: March 6, 2026· Updated: Mar 9, 2026

9.2

CVSS v3.1

EPSS:0.15%probability of exploitation in 30 daysPercentile:36.0th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-29046 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X