{"id":"CVE-2025-62718","aliases":["CLSA-2026-1782521951","CLSA-2026-1782781178","CLSA-2026-1782867613","CLSA-2026-1783040460","CLSA-2026-1783299714","CLSA-2026-1784769505","CLSA-2026-1784769531","CLSA-2026-1784856205","CLSA-2026-1785468080","CLSA-2026-1787930357","CLSA-2026-1790764333","CLSA-2026-1793101832","CLSA-2026-1793101849","CLSA-2026-1793110604","CLSA-2026-1793874599","DEBIAN-CVE-2025-62718","EUVD-2025-209381","GHSA-3p68-rc4w-qgx5","RHSA-2026:24761","UBUNTU-CVE-2025-62718","USN-8638-1"],"status":"published","title":"Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01207,"percentile":0.6874,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1289","CWE-441","CWE-918"],"published":"2026-04-09T14:31:46Z","modified":"2026-11-11T10:31:13Z","fixes":[{"ecosystem":"npm","package":"axios","fixed_in":["1.15.0","0.31.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"node-axios","fixed_in":["1.15.0-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"node-axios","fixed_in":["0.19.0+dfsg-2ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"node-axios","fixed_in":["0.26.0+dfsg-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:24.04:LTS","package":"node-axios","fixed_in":["1.6.8+dfsg-2ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:26.04:LTS","package":"node-axios","fixed_in":["1.13.2+dfsg-1ubuntu0.1~esm1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"fixed":"1.15.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.31.0"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.19.2-tuxcare.0"},{"fixed":"0.19.2-tuxcare.1"}]}],"versions":["0.19.2"],"bundled":17},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.21.1-tuxcare.0"},{"fixed":"0.21.1-tuxcare.1"}]}],"versions":["0.21.1"],"bundled":16},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.21.4-tuxcare.0"},{"fixed":"0.21.4-tuxcare.1"}]}],"versions":["0.21.4"],"bundled":15},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.24.0-tuxcare.0"},{"fixed":"0.24.0-tuxcare.1"}]}],"versions":["0.24.0"],"bundled":15},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.26.1-tuxcare.0"},{"fixed":"0.26.1-tuxcare.1"}]}],"versions":["0.26.1"],"bundled":15},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.7.7-tuxcare.0"},{"fixed":"1.7.7-tuxcare.3"}]}],"versions":["1.7.7","1.7.7-tuxcare.1","1.7.7-tuxcare.2"],"bundled":18},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.7.5-tuxcare.0"},{"fixed":"1.7.5-tuxcare.2"}]}],"versions":["1.7.5","1.7.5-tuxcare.1"],"bundled":18},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.7.9-tuxcare.0"},{"fixed":"1.7.9-tuxcare.1"}]}],"versions":["1.7.9"],"bundled":21},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.26.0-tuxcare.0"},{"fixed":"0.26.0-tuxcare.4"}]}],"versions":["0.26.0","0.26.0-tuxcare.1","0.26.0-tuxcare.2","0.26.0-tuxcare.3"],"bundled":14},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.27.2-tuxcare.0"},{"fixed":"0.27.2-tuxcare.5"}]}],"versions":["0.27.2","0.27.2-tuxcare.1","0.27.2-tuxcare.2","0.27.2-tuxcare.3","0.27.2-tuxcare.4"],"bundled":13},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.13.5-tuxcare.0"},{"fixed":"1.13.5-tuxcare.1"}]}],"versions":["1.13.5"],"bundled":28},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.21.2-tuxcare.0"},{"fixed":"0.21.2-tuxcare.2"}]}],"versions":["0.21.2","0.21.2-tuxcare.1"],"bundled":11},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.13.2-tuxcare.0"},{"fixed":"1.13.2-tuxcare.2"}]}],"versions":["1.13.2","1.13.2-tuxcare.1"],"bundled":32},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.12.2-tuxcare.0"},{"fixed":"1.12.2-tuxcare.1"}]}],"versions":["1.12.2"],"bundled":32},{"source":"osv","ecosystem":"TuxCare:npm","package":"axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.13.6-tuxcare.0"},{"fixed":"1.13.6-tuxcare.3"}]}],"versions":["1.13.6","1.13.6-tuxcare.1","1.13.6-tuxcare.2"],"bundled":27},{"source":"osv","ecosystem":"Debian:12","package":"node-axios","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11.0+dfsg-1","1.12.1+dfsg-1","1.13.1+dfsg-1","1.13.2+dfsg-1","1.14.0+dfsg-1","1.15.0-1","1.15.2-1","1.16.0-1","1.18.0-1","1.19.0-1","1.2.1+dfsg-1","1.2.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Notes","web","article","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2025-62718","tags":["vdb-entry","x_refsource_REDHAT","advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2456913","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-62718.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24761","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26010","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:16874","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:36882","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20938","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20889","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24766","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:59155","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24866","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:9742","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:13826","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:14937","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:41928","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24977","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:19712","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:10175","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:8483","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:8484","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:8490","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:8491","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:8493","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22840","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22629","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:21017","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24853","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:19375","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22465","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:23361","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24471","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:13571","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:17657","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:17699","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62718","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3p68-rc4w-qgx5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62718.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-62718","tags":["advisory"]},{"url":"https://github.com/axios/axios","tags":["package"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/release_notes/patch_releases","tags":["article"]},{"url":"https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5#Upgrading","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2441268","tags"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has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T14:31:46.067Z","modified":"2026-09-10T12:04:48.73Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high","assessor":"adp"}],"cwes":["CWE-441","CWE-918","CWE-1289"],"updated_at":"2026-11-02T14:32:54.87586Z"}],"euvd":[{"id":"EUVD-2025-209381","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T14:31:46Z","modified":"2026-09-10T12:04:48Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:25.63332Z"}],"ghsa":[{"id":"GHSA-3p68-rc4w-qgx5","title":"Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF","description":"Axios does not correctly handle hostname normalization when checking `NO_PROXY` rules.\nRequests to loopback addresses like `localhost.` (with a trailing dot) or `[::1]` (IPv6 literal) skip `NO_PROXY` matching and go through the configured proxy.\n\nThis goes against what developers expect and lets attackers force requests through a proxy, even if `NO_PROXY` is set up to protect loopback or internal services.\n\nAccording to [RFC 1034 §3.1](https://datatracker.ietf.org/doc/html/rfc1034#section-3.1) and [RFC 3986 §3.2.2](https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2), a hostname can have a trailing dot to show it is a fully qualified domain name (FQDN). At the DNS level, `localhost.` is the same as `localhost`. \nHowever, Axios does a literal string comparison instead of normalizing hostnames before checking `NO_PROXY`. This causes requests like `http://localhost.:8080/` and `http://[::1]:8080/` to be incorrectly proxied.\n\nThis issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections.\n\n---\n\n**PoC**\n\n```js\nimport http from \"http\";\nimport axios from \"axios\";\n\nconst proxyPort = 5300;\n\nhttp.createServer((req, res) =\u003e {\n  console.log(\"[PROXY] Got:\", req.method, req.url, \"Host:\", req.headers.host);\n  res.writeHead(200, { \"Content-Type\": \"text/plain\" });\n  res.end(\"proxied\");\n}).listen(proxyPort, () =\u003e console.log(\"Proxy\", proxyPort));\n\nprocess.env.HTTP_PROXY = `http://127.0.0.1:${proxyPort}`;\nprocess.env.NO_PROXY = \"localhost,127.0.0.1,::1\";\n\nasync function test(url) {\n  try {\n    await axios.get(url, { timeout: 2000 });\n  } catch {}\n}\n\nsetTimeout(async () =\u003e {\n  console.log(\"\\n[*] Testing http://localhost.:8080/\");\n  await test(\"http://localhost.:8080/\"); // goes through proxy\n\n  console.log(\"\\n[*] Testing http://[::1]:8080/\");\n  await test(\"http://[::1]:8080/\"); // goes through proxy\n}, 500);\n```\n\n**Expected:** Requests bypass the proxy (direct to loopback).\n**Actual:** Proxy logs requests for `localhost.` and `[::1]`.\n\n---\n\n**Impact**\n\n* Applications that rely on `NO_PROXY=localhost,127.0.0.1,::1` for protecting loopback/internal access are vulnerable.\n* Attackers controlling request URLs can:\n\n  * Force Axios to send local traffic through an attacker-controlled proxy.\n  * Bypass SSRF mitigations relying on NO\\_PROXY rules.\n  * Potentially exfiltrate sensitive responses from internal services via the proxy.\n  \n  \n---\n\n**Affected Versions**\n\n* Confirmed on Axios **1.12.2** (latest at time of testing).\n* affects all versions that rely on Axios’ current `NO_PROXY` evaluation.\n\n---\n\n**Remediation**\nAxios should normalize hostnames before evaluating `NO_PROXY`, including:\n\n* Strip trailing dots from hostnames (per RFC 3986).\n* Normalize IPv6 literals by removing brackets for matching.","status":"published","published":"2026-04-09T17:32:19Z","modified":"2026-04-16T18:44:34Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-441","CWE-918"],"updated_at":"2026-11-02T14:39:54.128054Z"}],"nvd":[{"id":"CVE-2025-62718","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T15:16:08.65Z","modified":"2026-10-14T17:10:00.21Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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":"medium","assessor":"secondary"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L","level":"critical","assessor":"primary"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-441","CWE-918","CWE-1289"],"updated_at":"2026-11-02T14:12:01.641503Z"}],"osv":[{"id":"CVE-2025-62718","title":"Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T14:31:46.067Z","modified":"2026-11-11T10:31:13.977555971Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-441","CWE-918"],"updated_at":"2026-11-11T11:06:35.674887Z"},{"id":"DEBIAN-CVE-2025-62718","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T15:16:08.65Z","modified":"2026-10-15T09:47:39.511279255Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L","level":"critical"}],"updated_at":"2026-11-02T15:45:47.697959Z"},{"id":"GHSA-3p68-rc4w-qgx5","title":"Axios has a NO_PROXY Hostname Normalization Bypass that Leads to SSRF","description":"Axios does not correctly handle hostname normalization when checking `NO_PROXY` rules.\nRequests to loopback addresses like `localhost.` (with a trailing dot) or `[::1]` (IPv6 literal) skip `NO_PROXY` matching and go through the configured proxy.\n\nThis goes against what developers expect and lets attackers force requests through a proxy, even if `NO_PROXY` is set up to protect loopback or internal services.\n\nAccording to [RFC 1034 §3.1](https://datatracker.ietf.org/doc/html/rfc1034#section-3.1) and [RFC 3986 §3.2.2](https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2), a hostname can have a trailing dot to show it is a fully qualified domain name (FQDN). At the DNS level, `localhost.` is the same as `localhost`. \nHowever, Axios does a literal string comparison instead of normalizing hostnames before checking `NO_PROXY`. This causes requests like `http://localhost.:8080/` and `http://[::1]:8080/` to be incorrectly proxied.\n\nThis issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections.\n\n---\n\n**PoC**\n\n```js\nimport http from \"http\";\nimport axios from \"axios\";\n\nconst proxyPort = 5300;\n\nhttp.createServer((req, res) =\u003e {\n  console.log(\"[PROXY] Got:\", req.method, req.url, \"Host:\", req.headers.host);\n  res.writeHead(200, { \"Content-Type\": \"text/plain\" });\n  res.end(\"proxied\");\n}).listen(proxyPort, () =\u003e console.log(\"Proxy\", proxyPort));\n\nprocess.env.HTTP_PROXY = `http://127.0.0.1:${proxyPort}`;\nprocess.env.NO_PROXY = \"localhost,127.0.0.1,::1\";\n\nasync function test(url) {\n  try {\n    await axios.get(url, { timeout: 2000 });\n  } catch {}\n}\n\nsetTimeout(async () =\u003e {\n  console.log(\"\\n[*] Testing http://localhost.:8080/\");\n  await test(\"http://localhost.:8080/\"); // goes through proxy\n\n  console.log(\"\\n[*] Testing http://[::1]:8080/\");\n  await test(\"http://[::1]:8080/\"); // goes through proxy\n}, 500);\n```\n\n**Expected:** Requests bypass the proxy (direct to loopback).\n**Actual:** Proxy logs requests for `localhost.` and `[::1]`.\n\n---\n\n**Impact**\n\n* Applications that rely on `NO_PROXY=localhost,127.0.0.1,::1` for protecting loopback/internal access are vulnerable.\n* Attackers controlling request URLs can:\n\n  * Force Axios to send local traffic through an attacker-controlled proxy.\n  * Bypass SSRF mitigations relying on NO\\_PROXY rules.\n  * Potentially exfiltrate sensitive responses from internal services via the proxy.\n  \n  \n---\n\n**Affected Versions**\n\n* Confirmed on Axios **1.12.2** (latest at time of testing).\n* affects all versions that rely on Axios’ current `NO_PROXY` evaluation.\n\n---\n\n**Remediation**\nAxios should normalize hostnames before evaluating `NO_PROXY`, including:\n\n* Strip trailing dots from hostnames (per RFC 3986).\n* Normalize IPv6 literals by removing brackets for matching.","status":"published","published":"2026-04-09T17:32:19Z","modified":"2026-09-10T03:50:42.452672741Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-441","CWE-918"],"updated_at":"2026-11-02T15:46:35.747385Z"},{"id":"RHSA-2026:24761","title":"Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update","status":"published","published":"2026-06-10T10:07:59Z","modified":"2026-10-20T10:06:29Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:19.449341Z"},{"id":"UBUNTU-CVE-2025-62718","description":"Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly handle hostname normalization when checking NO_PROXY rules. Requests to loopback addresses like localhost. (with a trailing dot) or [::1] (IPv6 literal) skip NO_PROXY matching and go through the configured proxy. This goes against what developers expect and lets attackers force requests through a proxy, even if NO_PROXY is set up to protect loopback or internal services. This issue leads to the possibility of proxy bypass and SSRF vulnerabilities allowing attackers to reach sensitive loopback or internal services despite the configured protections. This vulnerability is fixed in 1.15.0 and 0.31.0.","status":"published","published":"2026-04-09T15:16:00Z","modified":"2026-08-14T20:45:05.39921575Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L","level":"critical"}],"updated_at":"2026-11-02T16:55:50.817402Z"},{"id":"CLSA-2026-1782521951","title":"TuxCare security update for axios (17 CVEs)","description":"TuxCare rebuilt axios to address 17 CVEs. Fixed in 0.19.2-tuxcare.1.","status":"published","published":"2026-08-04T14:52:39Z","modified":"2026-10-15T09:47:51.501643897Z","updated_at":"2026-11-02T15:43:45.794021Z"},{"id":"CLSA-2026-1782781178","title":"TuxCare security update for axios (16 CVEs)","description":"TuxCare rebuilt axios to address 16 CVEs. Fixed in 0.21.1-tuxcare.1.","status":"published","published":"2026-08-04T14:52:40Z","modified":"2026-10-15T13:57:56.893232091Z","updated_at":"2026-11-02T15:43:45.794021Z"},{"id":"CLSA-2026-1782867613","title":"TuxCare security update for axios (15 CVEs)","description":"TuxCare rebuilt axios to address 15 CVEs. Fixed in 0.21.4-tuxcare.1.","status":"published","published":"2026-08-04T14:52:40Z","modified":"2026-10-15T09:47:51.552498386Z","updated_at":"2026-11-02T15:43:45.794021Z"},{"id":"CLSA-2026-1783040460","title":"TuxCare security update for axios (15 CVEs)","description":"TuxCare rebuilt axios to address 15 CVEs. Fixed in 0.24.0-tuxcare.1.","status":"published","published":"2026-08-04T14:52:41Z","modified":"2026-10-15T13:57:55.491180345Z","updated_at":"2026-11-02T15:43:45.794021Z"},{"id":"CLSA-2026-1783299714","title":"TuxCare security update for axios (15 CVEs)","description":"TuxCare rebuilt axios to address 15 CVEs. Fixed in 0.26.1-tuxcare.1.","status":"published","published":"2026-08-04T14:52:42Z","modified":"2026-10-15T09:48:03.671467748Z","updated_at":"2026-11-02T15:43:45.794021Z"},{"id":"CLSA-2026-1784769505","title":"TuxCare security update for axios (18 CVEs)","description":"TuxCare rebuilt axios to address 18 CVEs. Fixed in 1.7.7-tuxcare.3.","status":"published","published":"2026-08-04T14:52:47Z","modified":"2026-10-15T09:47:54.377144369Z","updated_at":"2026-11-02T15:43:46.482572Z"},{"id":"CLSA-2026-1784769531","title":"TuxCare security update for axios (18 CVEs)","description":"TuxCare rebuilt axios to address 18 CVEs. Fixed in 1.7.5-tuxcare.2.","status":"published","published":"2026-08-04T14:52:47Z","modified":"2026-10-15T09:47:36.840967341Z","updated_at":"2026-11-02T15:43:46.482572Z"},{"id":"CLSA-2026-1784856205","title":"TuxCare security update for axios (21 CVEs)","description":"TuxCare rebuilt axios to address 21 CVEs. Fixed in 1.7.9-tuxcare.1.","status":"published","published":"2026-08-04T14:52:48Z","modified":"2026-10-15T09:47:55.013314732Z","updated_at":"2026-11-02T15:43:46.482572Z"},{"id":"CLSA-2026-1785468080","title":"TuxCare security update for axios (15 CVEs)","description":"TuxCare rebuilt axios to address 15 CVEs. Fixed in 0.26.0-tuxcare.4.","status":"published","published":"2026-08-04T14:52:51Z","modified":"2026-10-25T07:28:08.497556196Z","updated_at":"2026-11-02T15:43:46.850893Z"},{"id":"CLSA-2026-1787930357","title":"TuxCare security update for axios (13 CVEs)","description":"TuxCare rebuilt axios to address 13 CVEs. Fixed in 0.27.2-tuxcare.5.","status":"published","published":"2026-08-28T15:19:17Z","modified":"2026-10-15T09:47:55.213069496Z","updated_at":"2026-11-02T15:43:47.591214Z"},{"id":"CLSA-2026-1790764333","title":"TuxCare security update for axios (28 CVEs)","description":"TuxCare rebuilt axios to address 28 CVEs. Fixed in 1.13.5-tuxcare.1.","status":"published","published":"2026-09-30T10:32:13Z","modified":"2026-10-15T09:47:53.491657971Z","updated_at":"2026-11-02T15:43:48.65893Z"},{"id":"CLSA-2026-1793101832","title":"TuxCare security update for axios (11 CVEs)","description":"TuxCare rebuilt axios to address 11 CVEs. Fixed in 0.21.2-tuxcare.2.","status":"published","published":"2026-10-27T11:50:32Z","modified":"2026-11-06T13:28:02.439879551Z","updated_at":"2026-11-06T13:44:09.891978Z"},{"id":"CLSA-2026-1793101849","title":"TuxCare security update for axios (32 CVEs)","description":"TuxCare rebuilt axios to address 32 CVEs. Fixed in 1.13.2-tuxcare.2.","status":"published","published":"2026-10-27T11:50:49Z","modified":"2026-10-27T13:30:17.542584318Z","updated_at":"2026-11-02T15:43:55.34846Z"},{"id":"CLSA-2026-1793110604","title":"TuxCare security update for axios (32 CVEs)","description":"TuxCare rebuilt axios to address 32 CVEs. Fixed in 1.12.2-tuxcare.1.","status":"published","published":"2026-10-27T14:16:44Z","modified":"2026-10-27T19:30:03.618389185Z","updated_at":"2026-11-02T15:43:55.34846Z"},{"id":"CLSA-2026-1793874599","title":"TuxCare security update for axios (27 CVEs)","description":"TuxCare rebuilt axios to address 27 CVEs. Fixed in 1.13.6-tuxcare.3.","status":"published","published":"2026-11-05T11:30:00Z","modified":"2026-11-05T13:15:17.383465117Z","updated_at":"2026-11-05T13:30:00.949926Z"},{"id":"USN-8638-1","title":"node-axios vulnerabilities","description":"Ameer Assadi discovered that Axios did not properly handle certain\nhostnames when applying NO_PROXY rules. An attacker could possibly use\nthis issue to bypass proxy restrictions and access internal services,\nresulting in server-side request forgery. (CVE-2025-62718)\n\nIt was discovered that Axios did not properly protect certain HTTP\nheader values from prototype pollution. An attacker could possibly use\nthis issue to inject malicious values into outbound requests, resulting\nin HTTP header injection. (CVE-2026-40175)\n\nSachin Patil and Amol Patil discovered that Axios did not properly apply\nNO_PROXY rules to certain loopback addresses. An attacker could possibly\nuse this issue to bypass proxy restrictions and access internal\nservices, resulting in server-side request forgery. (CVE-2026-42043)\n\nYu Bao discovered that Axios did not properly protect JSON response\nprocessing from prototype pollution. An attacker could possibly use this\nissue to modify values in application responses, resulting in\nauthorization bypass or privilege escalation. This issue only affected\nUbuntu 26.04 LTS. (CVE-2026-42044)\n\nIt was discovered that Axios did not properly protect certain request\nconfiguration options from prototype pollution. An attacker could\npossibly use this issue to modify outbound HTTP requests, resulting in\nsecurity restrictions being bypassed. This issue only affected Ubuntu\n24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-42264)","status":"published","published":"2026-08-13T19:31:14Z","modified":"2026-08-14T20:57:01.504831827Z","updated_at":"2026-11-02T16:58:25.103481Z"}]}}