Fiber Utils is a collection of common functions created for Fiber. In versions 2.0.0-rc.3 and below, when the system's cryptographic random number generator (crypto/rand) fails, both functions silently fall back to returning predictable UUID values, including the zero UUID "00000000-0000-0000-0000-000000000000". The vulnerability occurs through two related but distinct failure paths, both ultimately caused by crypto/rand.Read() failures, compromising the security of all Fiber applications using these functions for security-critical operations. This issue is fixed in version 2.0.0-rc.4.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/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:XGofiber Utils
APPGofiber2.0.0≤ 1.2.0
Related vulnerabilities
Przewidywalne UUID w Fiber v2 — podatność na generowanie słabych identyfikatorów
Session Fixation w middleware sesji GoFiber Fiber (wersje < 2.52.5)
Gofiber Fiber: Niebezpieczna konfiguracja CORS middleware (wildcard + credentials)
XSS w silniku szablonów Django dla Gofiber/template (brak autoescape)
Fiber is an express inspired web framework written in Go. A Cross-Site Request Forgery (CSRF) vulnerability ha...