{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-30246", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-04T17:23:59.799Z", "datePublished": "2026-05-05T12:40:19.813Z", "dateUpdated": "2026-05-05T12:40:19.813Z"}, "containers": {"cna": {"title": "github.com/gofiber/fiber/v3 cache middleware can mix responses across query parameters", "problemTypes": [{"descriptions": [{"cweId": "CWE-436", "lang": "en", "description": "CWE-436: Interpretation Conflict", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8"}, {"name": "https://github.com/gofiber/fiber/blob/main/middleware/cache/cache_test.go#L599-L621", "tags": ["x_refsource_MISC"], "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/cache_test.go#L599-L621"}, {"name": "https://github.com/gofiber/fiber/blob/main/middleware/cache/config.go#L90-L92", "tags": ["x_refsource_MISC"], "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/config.go#L90-L92"}], "affected": [{"vendor": "gofiber", "product": "fiber", "versions": [{"version": ">= v3.0.0-beta.2, < 3.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-05T12:40:19.813Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-35hp-hqmv-8qg8", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-30246", "lastModified": "2026-05-05T13:16:28.820", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-05T13:16:28.820", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/cache_test.go#L599-L621"}, {"source": "security-advisories@github.com", "url": "https://github.com/gofiber/fiber/blob/main/middleware/cache/config.go#L90-L92"}, {"source": "security-advisories@github.com", "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-35hp-hqmv-8qg8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-436"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[v3.0.0-beta.2,3.1.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "fiber", "source": "cna", "vendor": "gofiber"}, "product": "fiber", "vendor": "gofiber"}], "created": "2026-05-05T13:30:24.945977+00:00", "updated": "2026-05-05T13:30:25.249032+00:00", "vendors": ["gofiber", "gofiber$PRODUCT$fiber"]}