{"schemaVersion":3,"id":"CVE-2021-21321","aliases":["GHSA-qmw8-3v4g-gwj4"],"status":"published","duplicateOf":null,"title":null,"description":"fastify-reply-from is an npm package which is a fastify plugin to forward the current http request to another server. In fastify-reply-from before version 4.0.2, by crafting a specific URL, it is possible to escape the prefix of the proxied backend service. If the base url of the proxied server is \"/pub/\", a user expect that accessing \"/priv\" on the target service would not be possible. In affected versions, it is possible. This is fixed in version 4.0.2.","dates":{"published":"2021-03-02T03:35:25.000Z","modified":"2024-08-03T18:09:15.260Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":10,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · 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Advisory"]},{"url":"https://github.com/fastify/fastify-reply-from/commit/dea227dda606900cc01870d08541b4dcc69d3889","label":"github.com/fastify/fastify-reply-from/commit/dea227dda606900cc01870d08541b4dcc69d3889","hostname":"github.com","tags":["X Refsource MISC","WEB","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21321","label":"nvd.nist.gov/vuln/detail/CVE-2021-21321","hostname":"nvd.nist.gov","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-03-02T03:35:25.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-03T18:09:15.260Z","label":"Last modified","detail":"Vulnerability information 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