Memory Allocation with Excessive Size Value Affecting github.com/gofiber/fiber/v2 package, versions <2.52.9
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOFIBERFIBERV2-11483934
- published6 Aug 2025
- disclosed6 Aug 2025
- creditAnuraag Baishya
Introduced: 6 Aug 2025
NewCVE-2025-54801 Â (opens in a new tab)How to fix?
Upgrade github.com/gofiber/fiber/v2 to version 2.52.9 or higher.
Overview
github.com/gofiber/fiber/v2 is an Express inspired web framework written in Go.
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the BodyParser function, which allocates a slice of length idx+1 without validating. An attacker can cause the application to crash or exhaust system memory by submitting form data with a large numeric key that results in an unvalidated slice index.