Description

Fiber is an Express inspired web framework written in Go. In versions 2.52.8 and below, when using Fiber's Ctx.BodyParser to parse form data containing a large numeric key that represents a slice index (e.g., test.18446744073704), the application crashes due to an out-of-bounds slice allocation in the underlying schema decoder. The root cause is that the decoder attempts to allocate a slice of length idx + 1 without validating whether the index is within a safe or reasonable range. If the idx is excessively large, this leads to an integer overflow or memory exhaustion, causing a panic or crash. This is fixed in version 2.52.9.

INFO

Published Date :

2025-08-05T23:33:28.221Z

Last Modified :

2025-08-07T14:00:09.981Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-54801 vulnerability.

Vendors Products
Gofiber
  • Fiber
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-54801.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
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Privileges Required
User Interaction
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SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact