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CVE-2026-30246

6.5 medium SSVC exploitation: poc Analyzed

Fiber is a web framework for Go. In github.com/gofiber/fiber/v3 versions through 3.1.0, the default key generator in the cache middleware uses only the request path and does not include the query string. As a result, requests for the same path with different query parameters can share a cache key and receive the wrong cached response. This can cause response mix-up for query-dependent endpoints and may expose data intended for a different request. This issue is fixed after version 3.1.0.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.5 · gofiberNVD modified 2026-10-26 19:10

Affected (CPE criteria) 1

  • cpe:2.3:a:gofiber:fiber:*:*:*:*:*:go:*:*

References 4