{"url":"http://public2.vulnerablecode.io/api/packages/80903?format=json","purl":"pkg:maven/org.http4s/http4s-core@1.0.0-M1","type":"maven","namespace":"org.http4s","name":"http4s-core","version":"1.0.0-M1","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"1.0.0-M23","latest_non_vulnerable_version":"1.0.0-M23","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/106017?format=json","vulnerability_id":"VCID-ecme-hxe7-q7d8","summary":"Http4s improperly parses User-Agent and Server headers\n### Impact\n\nThe `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs.  In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. \n\n#### v0.21.x\n\n```scala\nval unsafe: Option[`User-Agent`] = req.headers.get(`User-Agent`)\n```\n\n#### v0.22.x, v0.23.x, v1.x\n\n```scala\nval unsafe: Option[`User-Agent`] = req.headers.get[`User-Agent`]\nval alsoUnsafe: Option[`Server`] = req.headers.get[Server]\n```\n\n### Patches\n\nFixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38.\n\n### Workarounds\n\n#### Use the weakly typed header interface\n\n##### v0.21.x\n\n```scala\nval safe: Option[Header] = req.headers.get(\"User-Agent\".ci)\n// but don't do this\nval unsafe = header.map(_.parsed) \n```\n\n##### v0.22.x, v0.23.x, v1.x\n\n```scala\nval safe: Option[Header] = req.headers.get(ci\"User-Agent\")\n```","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-22465","reference_id":"","reference_type":"","scores":[{"value":"0.00335","scoring_system":"epss","scoring_elements":"0.5657","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00335","scoring_system":"epss","scoring_elements":"0.56623","published_at":"2026-06-05T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-22465"},{"reference_url":"https://github.com/http4s/http4s","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/http4s/http4s"},{"reference_url":"https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-03-10T21:02:19Z/"}],"url":"https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22465","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22465"},{"reference_url":"https://github.com/advisories/GHSA-54w6-vxfh-fw7f","reference_id":"GHSA-54w6-vxfh-fw7f","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-54w6-vxfh-fw7f"}],"fixed_packages":[],"aliases":["CVE-2023-22465","GHSA-54w6-vxfh-fw7f"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-ecme-hxe7-q7d8"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/54546?format=json","vulnerability_id":"VCID-zpsp-jh45-7ygv","summary":"Path Traversal\nHttp4s is a Scala interface for HTTP services. `StaticFile.fromUrl` can leak the presence of a directory on a server when the `URL` scheme is not `file://`, and the URL points to a fetchable resource under its scheme and authority. The function returns `F[None]`, indicating no resource, if `url.getFile` is a directory, without first checking the scheme or authority of the URL. If a URL connection to the scheme and URL would return a stream, and the path in the URL exists as a directory on the server, the presence of the directory on the server could be inferred from the response. The contents and other metadata about the directory are not exposed.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32643","reference_id":"","reference_type":"","scores":[{"value":"0.00316","scoring_system":"epss","scoring_elements":"0.55081","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00316","scoring_system":"epss","scoring_elements":"0.55023","published_at":"2026-06-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32643"},{"reference_url":"https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9"},{"reference_url":"https://mvnrepository.com/artifact/org.http4s/http4s-core","reference_id":"","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://mvnrepository.com/artifact/org.http4s/http4s-core"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32643","reference_id":"CVE-2021-32643","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32643"},{"reference_url":"https://github.com/advisories/GHSA-6h7w-fc84-x7p6","reference_id":"GHSA-6h7w-fc84-x7p6","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-6h7w-fc84-x7p6"},{"reference_url":"https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6","reference_id":"GHSA-6h7w-fc84-x7p6","reference_type":"","scores":[{"value":"5.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/80907?format=json","purl":"pkg:maven/org.http4s/http4s-core@1.0.0-M23","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.http4s/http4s-core@1.0.0-M23"}],"aliases":["CVE-2021-32643","GHSA-6h7w-fc84-x7p6"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-zpsp-jh45-7ygv"}],"fixing_vulnerabilities":[],"risk_score":"4.0","resource_url":"http://public2.vulnerablecode.io/packages/pkg:maven/org.http4s/http4s-core@1.0.0-M1"}