Improper Validation of Array Index Affecting github.com/gofiber/fiber/v3 package, versions <3.1.0
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-GITHUBCOMGOFIBERFIBERV3-15344165
- published25 Feb 2026
- disclosed25 Feb 2026
- creditYashar Chogan
Introduced: 25 Feb 2026
CVE-2026-25882 Â (opens in a new tab)How to fix?
Upgrade github.com/gofiber/fiber/v3 to version 3.1.0 or higher.
Overview
github.com/gofiber/fiber/v3 is an Express inspired web framework written in Go.
Affected versions of this package are vulnerable to Improper Validation of Array Index via the route registration process. An attacker can cause the application to crash by sending requests to routes containing more than 30 parameters.