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TI-2026-10492 Aliases CVE-2026-12200GHSA-gpg8-377c-3rgp

Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow

Priority LOW 36CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A security vulnerability has been detected in Ritlabs TinyWeb Server up to 1.94 on Win32. This impacts an unknown function in the library libeay32.dll.html of the component Header Handler. The manipulation of the argument Authorization leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00324 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
maximmasiutinTinyWeb Server1.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 1.10; 1.11; 1.12; 1.13; 1.14; 1.15; 1.16; 1.17; 1.18; 1.19; 1.20; 1.21; 1.22; 1.23; 1.24; 1.25; 1.26; 1.27; 1.28; 1.29; 1.30; 1.31; 1.32; 1.33; 1.34; 1.35; 1.36; 1.37; 1.38; 1.39; 1.40; 1.41; 1.42; 1.43; 1.44; 1.45; 1.46; 1.47; 1.48; 1.49; 1.50; 1.51; 1.52; 1.53; 1.54; 1.55; 1.56; 1.57; 1.58; 1.59; 1.60; 1.61; 1.62; 1.63; 1.64; 1.65; 1.66; 1.67; 1.68; 1.69; 1.70; 1.71; 1.72; 1.73; 1.74; 1.75; 1.76; 1.77; 1.78; 1.79; 1.80; 1.81; 1.82; 1.83; 1.84; 1.85; 1.86; 1.87; 1.88; 1.89; 1.90; 1.91; 1.92; 1.93; 1.94—No fix listedCNA
  • TinyWeb Server Vendormaximmasiutin Affected 1.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 1.10; 1.11; 1.12; 1.13; 1.14; 1.15; 1.16; 1.17; 1.18; 1.19; 1.20; 1.21; 1.22; 1.23; 1.24; 1.25; 1.26; 1.27; 1.28; 1.29; 1.30; 1.31; 1.32; 1.33; 1.34; 1.35; 1.36; 1.37; 1.38; 1.39; 1.40; 1.41; 1.42; 1.43; 1.44; 1.45; 1.46; 1.47; 1.48; 1.49; 1.50; 1.51; 1.52; 1.53; 1.54; 1.55; 1.56; 1.57; 1.58; 1.59; 1.60; 1.61; 1.62; 1.63; 1.64; 1.65; 1.66; 1.67; 1.68; 1.69; 1.70; 1.71; 1.72; 1.73; 1.74; 1.75; 1.76; 1.77; 1.78; 1.79; 1.80; 1.81; 1.82; 1.83; 1.84; 1.85; 1.86; 1.87; 1.88; 1.89; 1.90; 1.91; 1.92; 1.93; 1.94 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:ritlabs:tinyweb_server:*:*:*:*:*:*:*:*——maximmasiutin
  • cpe:2.3:a:ritlabs:tinyweb_server:*:*:*:*:*:*:*:* Versions — — ·maximmasiutin

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12200
  2. 2026-10-03 Alias added: GHSA-gpg8-377c-3rgp

References

Exploit 1

  • TI-2024-04819 Ritlabs TinyWeb Server Request crlf injection CVSS 4.0MEDIUM 6.9
  • TI-2026-18299 TinyWeb CGI Command Injection CVSS 4.0CRITICAL 10.0
  • TI-2026-21999 CGI Parameter Injection (Bypass of STRICT_CGI_PARAMS and EscapeShellParam) CVSS 4.0CRITICAL 10.0
  • TI-2026-22760 TinyWeb: Integer Overflow in `_Val` (HTTP Request Smuggling) CVSS 4.0CRITICAL 9.3
  • TI-2026-23191 TinyWeb: HTTP Header Control Character Injection into CGI Environment CVSS 4.0CRITICAL 9.2
  • TI-2024-22622 TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of… CVSS 3.1HIGH 8.6
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences