Junglewise Threat Intelligence

CVE-2026-25899: GO-2026-4534 - Fiber is Vulnerable to Denial of Service via Flash Cookie Unbounded Allocation in github.com/gofiber/fiber/v3

CVE-2026-25899 · Severity: low · CVSS 3.1 · Published 2026-02-26

Technologies: github.com/gofiber/fiber/v3 (Go). Vendors: Go.

Executive brief

Fiber is Vulnerable to Denial of Service via Flash Cookie Unbounded Allocation in github.com/gofiber/fiber/v3

Affected products

  • Go github.com/gofiber/fiber/v3

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