{"id":"CVE-2025-1211","aliases":["EUVD-2025-2081","GHSA-vq52-99r9-h5pw"],"status":"published","title":"Server-side Request Forgery (SSRF) in hackney","description":"Versions of the package hackney before 1.21.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. \rThis vulnerability can be exploited when users rely on the URL function for host checking.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00524,"percentile":0.44937,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2025-02-11T05:00:00Z","modified":"2026-10-28T02:31:07Z","fixes":[{"ecosystem":"Hex","package":"hackney","fixed_in":["1.21.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Hex","package":"hackney","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.0"}]}]},{"source":"osv","ecosystem":"Hex","package":"hackney","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.21.0"}]}],"versions":["0.13.1","0.14.0","0.14.1","0.14.2","0.14.3","0.15.0","0.15.2","1.0.1","1.0.2","1.0.5","1.0.6","1.1.0","1.10.0","1.10.1","1.11.0","1.12.0","1.12.1","1.13.0","1.14.0","1.14.2","1.14.3","1.15.0","1.15.1","1.15.2","1.16.0","1.17.0","1.17.1","1.17.2","1.17.3","1.17.4","1.18.0","1.18.1","1.18.2","1.19.0","1.19.1","1.2.0","1.20.0","1.20.1","1.3.0","1.3.1","1.3.2","1.4.0","1.4.1","1.4.10","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.4.7","1.4.8","1.5.0","1.5.1","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","1.5.7","1.6.0","1.6.1","1.6.2","1.6.3","1.6.4","1.6.5","1.6.6","1.7.0","1.7.1","1.8.0","1.8.2","1.8.3","1.8.4","1.8.5","1.8.6","1.9.0"]}],"products":[{"vendor":"hackney","product":"hackney"}],"references":[{"url":"https://security.snyk.io/vuln/SNYK-HEX-HACKNEY-6516131","tags":["web"]},{"url":"https://gist.github.com/snoopysecurity/996de09ec0cfd0ebdcfdda8ff515deb1","tags":["exploit","web"]},{"url":"https://www.blackhat.com/docs/us-17/thursday/us-17-Tsai-A-New-Era-Of-SSRF-Exploiting-URL-Parser-In-Trending-Programming-Languages.pdf","tags":["web"]},{"url":"https://github.com/benoitc/hackney/commit/9594ce58fabd32cd897fc28fae937694515a3d4a","tags":["fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-1211","tags":["advisory"]},{"url":"https://github.com/benoitc/hackney/releases/tag/1.21.0","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vq52-99r9-h5pw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1211.json","tags":["advisory"]},{"url":"https://github.com/benoitc/hackney","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-1211","description":"Versions of the package hackney before 1.21.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. \rThis vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T05:00:00.994Z","modified":"2025-03-16T12:48:56.614Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P","level":"medium","assessor":"cna"}],"cwes":["CWE-918","CWE-918"],"updated_at":"2026-11-02T14:32:49.824855Z"}],"euvd":[{"id":"EUVD-2025-2081","description":"Versions of the package hackney before 1.21.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. \rThis vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T05:00:00Z","modified":"2025-03-16T12:48:56Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium"}],"updated_at":"2026-11-02T20:53:02.264374Z"}],"ghsa":[{"id":"GHSA-vq52-99r9-h5pw","title":"Server-side Request Forgery (SSRF) in hackney","description":"Versions of the package hackney from 0.0.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. This vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T06:30:27Z","modified":"2025-02-20T16:41:46Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium"},{"version":"4.0","score":2.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:38:32.275316Z"}],"nvd":[{"id":"CVE-2025-1211","description":"Versions of the package hackney before 1.21.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. \rThis vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T05:15:14.013Z","modified":"2026-06-17T08:38:36.677Z","cvss":[{"version":"4.0","score":2.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:10:50.916773Z"}],"osv":[{"id":"CVE-2025-1211","description":"Versions of the package hackney before 1.21.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. \rThis vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T05:00:00.994Z","modified":"2026-10-28T02:31:07.404037421Z","cvss":[{"version":"4.0","score":2.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:46.024537Z"},{"id":"GHSA-vq52-99r9-h5pw","title":"Server-side Request Forgery (SSRF) in hackney","description":"Versions of the package hackney from 0.0.0 are vulnerable to Server-side Request Forgery (SSRF) due to improper parsing of URLs by URI built-in module and hackey. Given the URL http://127.0.0.1?@127.2.2.2/, the URI function will parse and see the host as 127.0.0.1 (which is correct), and hackney will refer the host as 127.2.2.2/. This vulnerability can be exploited when users rely on the URL function for host checking.","status":"published","published":"2025-02-11T06:30:27Z","modified":"2025-12-10T00:40:06.233307Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","level":"medium"},{"version":"4.0","score":2.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"low"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:46:57.694388Z"}]}}