{"id":"CVE-2024-43394","aliases":["ALPINE-CVE-2024-43394","BELL-CVE-2024-43394","BIT-apache-2024-43394","CLSA-2026-1777946314","DEBIAN-CVE-2024-43394","DLA-4270-1","EUVD-2024-54772","GHSA-gxxm-rhpx-j39m","UBUNTU-CVE-2024-43394","openSUSE-SU-2025:15360-1"],"status":"published","title":"Apache HTTP Server: SSRF on Windows due to UNC paths","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.01272,"percentile":0.70052,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2025-07-10T16:56:07Z","modified":"2026-11-02T11:17:50Z","fixes":[{"ecosystem":"Alpine:v3.19","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"apache2","fixed_in":["2.4.65-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"apache2","fixed_in":["2.4.64-r0"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"apache","fixed_in":["2.4.64"],"sources":["osv"]},{"ecosystem":"Debian:11","package":"apache2","fixed_in":["2.4.65-1~deb11u1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.19","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:23","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.54-r2"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.63-r0"},{"fixed":"2.4.65-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.4.56-r0"},{"fixed":"2.4.64-r0"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"apache","ranges":[{"type":"SEMVER","events":[{"introduced":"2.4.0"},{"fixed":"2.4.64"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd-filesystem","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd-manual","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"httpd-tools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"mod_ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"mod_lua","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"mod_proxy_html","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"mod_session","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.62-4.el9_6.4.tuxcare.els3"}]}],"bundled":4},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"mod_ssl","ranges":[{"type":"ECOSYSTEM","events":[{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software foundation","product":"apache http server"}],"references":[{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","tags":["vendor-advisory","Vendor Advisory","advisory","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/07/10/2","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/07/10/5","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43394","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gxxm-rhpx-j39m"},{"url":"https://security.alpinelinux.org/vuln/CVE-2024-43394","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2024-43394","tags":["advisory"]},{"url":"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1777946314.html","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43394.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-43394","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-43394","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-43394","tags":["report"]},{"url":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2024-43394","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-42516","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-43204","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-43394","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-47252","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-23048","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-49630","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-49812","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-53020","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2024-43394","title":"Apache HTTP Server: SSRF on Windows due to UNC paths","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T16:56:07.72Z","modified":"2025-11-04T21:08:53.876Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:33:58.357949Z"}],"euvd":[{"id":"EUVD-2024-54772","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T16:56:07Z","modified":"2025-11-04T21:08:53Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T19:49:21.645169Z"}],"ghsa":[{"id":"GHSA-gxxm-rhpx-j39m","title":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak...","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T18:31:26Z","modified":"2025-11-05T00:31:20Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:04:38.82847Z"}],"nvd":[{"id":"CVE-2024-43394","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T17:15:46.133Z","modified":"2026-06-17T07:50:57.76Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:10:47.073504Z"}],"osv":[{"id":"ALPINE-CVE-2024-43394","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T17:15:46.133Z","modified":"2026-11-02T11:17:50.107764131Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:27:49.709457Z"},{"id":"BELL-CVE-2024-43394","status":"published","published":"2025-07-11T06:00:42.108609Z","modified":"2026-01-26T09:37:18.339674Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:28:20.452786Z"},{"id":"CVE-2024-43394","title":"Apache HTTP Server: SSRF on Windows due to UNC paths","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T16:56:07.72Z","modified":"2026-10-28T02:31:00.950110842Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:42.322107Z"},{"id":"DEBIAN-CVE-2024-43394","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via  mod_rewrite or apache expressions that pass unvalidated request input.  This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.  Note:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths.   The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-10T17:15:46.133Z","modified":"2026-08-27T23:05:35.265757386Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:43.473331Z"},{"id":"BIT-apache-2024-43394","title":"Apache HTTP Server: SSRF on Windows due to UNC paths","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via \nmod_rewrite or apache expressions that pass unvalidated request input.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.63.\n\nNote:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. \n\nThe server offers limited protection against administrators directing the server to open UNC paths.\nWindows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"published","published":"2025-07-16T07:56:03.162Z","modified":"2026-09-08T08:45:42.237396847Z","updated_at":"2026-11-02T15:28:28.267217Z"},{"id":"CLSA-2026-1777946314","title":"httpd: Fix of 4 CVEs","description":"- CVE-2024-42516: fix HTTP response splitting in core via Content-Type response header (header_filter rewrite)\n- CVE-2024-43204: prevent SSRF via mod_headers RequestHeader set/edit Content-Type modifying response headers\n- CVE-2024-43394: expand UNC path checking with new ap_stat_check helper (Linux: defense-in-depth no-op);\n  fold in upstream fix for CVE-2025-54090 (RewriteCond expr always evaluating true regression)","status":"published","published":"2026-05-05T01:58:42Z","modified":"2026-06-01T00:32:51.113716089Z","updated_at":"2026-11-02T15:43:44.737408Z"},{"id":"DLA-4270-1","title":"apache2 - security update","status":"published","published":"2025-08-12T00:00:00Z","modified":"2026-03-09T02:11:17.49165Z","updated_at":"2026-11-02T15:46:12.7027Z"},{"id":"openSUSE-SU-2025:15360-1","title":"apache2-2.4.64-1.1 on GA media","description":"These are all security issues fixed in the apache2-2.4.64-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-07-20T00:00:00Z","modified":"2026-03-23T04:53:41.208916Z","updated_at":"2026-11-02T16:58:37.810934Z"},{"id":"UBUNTU-CVE-2024-43394","description":"Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63. Note:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication.","status":"withdrawn","published":"2025-07-11T00:00:00Z","modified":"2025-07-14T06:35:58.432071Z","updated_at":"2026-11-02T16:54:58.679387Z"}]}}