CVE-2025-48075: Gofiber Fiber

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Fiber is an Express-inspired web framework written in Go. Starting in version 2.52.6 and prior to version 2.52.7, `fiber.Ctx.BodyParser` can map flat data to nested slices using `key[idx]value` syntax, but when idx is negative, it causes a panic instead of returning an error stating it cannot process the data. Since this data is user-provided, this could lead to denial of service for anyone relying on this `fiber.Ctx.BodyParser` functionality. Version 2.52.7 fixes the issue.

Affected products

• Gofiber Fiber: from 2.0.0, before 2.52.7 (fixed in 2.52.7)

Published 2025-05-22. Last modified 2026-06-17.