{"cve":"CVE-2026-30246","nvd":{"published":"2026-05-05T13:16:28.820","modified":"2026-10-26T19:10:00.163","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-436"],"references":["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","https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8","https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8"],"products":["gofiber:fiber"],"source":"nvd","synced_at":"2026-10-26T19:31:02.781428341+00:00"},"epss":{"cve":"CVE-2026-30246","score":0.00251,"percentile":0.16351,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-35hp-hqmv-8qg8","url":"https://osv.dev/vulnerability/GHSA-35hp-hqmv-8qg8","summary":"Fiber's cache middleware default key generator ignores query string, causing response mix-up across distinct query parameters","modified":"2026-07-24T19:11:27.190834244Z","packages":[{"ecosystem":"Go","name":"github.com/gofiber/fiber/v3","purl":"pkg:golang/github.com/gofiber/fiber/v3","ranges":["<3.2.0"],"fixed":["3.2.0"]}]},{"id":"GO-2026-5069","url":"https://osv.dev/vulnerability/GO-2026-5069","summary":"Fiber: Cache middleware key generator ignores query string in github.com/gofiber/fiber","modified":"2026-07-24T19:00:21.464046341Z","packages":[{"ecosystem":"Go","name":"github.com/gofiber/fiber/v3","purl":"pkg:golang/github.com/gofiber/fiber/v3","ranges":["<3.2.0"],"fixed":["3.2.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}