CVE-2026-30246
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.
- Score
- CVSS 3.1 6.5 Medium
- Status
- Analyzed - security-advisories@github.com
- Published
- 2026-05-05
- Last modified
- 2026-10-26
- Weaknesses
- CWE-436
Affected products
References
- https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8
- https://github.com/gofiber/fiber/blob/main/middleware/cache/cache_test.go#L599-L621
- https://github.com/gofiber/fiber/blob/main/middleware/cache/config.go#L90-L92
