CVE-2025-66630

A flaw was found in the Fiber web framework github.com/gofiber/fiber/v2. On Go versions prior to 1.24, the framework's Universally Unique Identifier UUID generation functions do not return an error when the underlying cryptographic randomness source fails. This can cause applications to use...

CVE-2025-66630 Fiber insecurely fallsback in utils.UUIDv4() / utils.UUID() — predictable / zero‑UUID on crypto/rand failure

Fiber is an Express inspired web framework written in Go. Before 2.52.11, on Go versions prior to 1.24, the underlying crypto/rand implementation can return an error if secure randomness cannot be obtained. Because no error is returned by the Fiber v2 UUID functions, application code may...

CVE-2025-66630 Fiber insecurely fallsback in utils.UUIDv4() / utils.UUID() — predictable / zero‑UUID on crypto/rand failure

Fiber is an Express inspired web framework written in Go. Before 2.52.11, on Go versions prior to 1.24, the underlying crypto/rand implementation can return an error if secure randomness cannot be obtained. Because no error is returned by the Fiber v2 UUID functions, application code may...

CVE-2025-66630

Fiber is a Go web framework. Before 2.52.11 and on Go

Fiber has an insecure fallback in utils.UUIDv4() / utils.UUID() — predictable / zero‑UUID on crypto/rand failure

Fiber v2 contains an internal vendored copy of gofiber/utils, and its functions UUIDv4 and UUID inherit the same critical weakness described in the upstream advisory. On Go versions prior to 1.24, the underlying crypto/rand implementation can return an error if secure randomness cannot be obtaine...

CVE-2025-66565 Fiber Utils UUIDv4 and UUID Silent Fallback to Predictable Values

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...

CVE-2025-66565

Fiber Utils (github.com/gofiber/utils) has a vulnerability in UUIDv4() and UUID() where crypto/rand.Read() failures trigger silent fallbacks to predictable UUID values, including the zero UUID 00000000-0000-0000-0000-000000000000. This root cause affects versions up to 2.0.0-rc.3; the issue is fi...

Linux Distros Unpatched Vulnerability : CVE-2020-27743

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libtac in pamtacplus through 1.5.1 lacks a check for a failure of RANDbytes/RANDpseudobytes. This could lead to use of a non-random/predictable sessionid...

c-ares: Insufficient randomness in generation of DNS query IDs

A vulnerability was found in c-ares. This issue occurs when /dev/urandom or RtlGenRandom are unavailable, c-ares will use rand to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand, so it will generate predictable output...