CVE-2025-48075
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFiber
PublishedMay 22, 2025
First seenMay 22, 2025
Weakness typeCWE-129CWE-129
How to fix
Update
- gofiber fiber2.52.7 or later
- github.com/gofiber/fiber/v22.52.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gofiber fiber | 2.0.0 ≤ v < 2.52.7 | 2.52.7 |
| github.com/gofiber/fiber/v2Go | 2.52.6 ≤ v < 2.52.7 | 2.52.7 |
| github.com/gofiber/fiberGo | No range specified | — |
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