{"schemaVersion":3,"id":"CVE-2024-38473","aliases":["ALPINE-CVE-2024-38473","UBUNTU-CVE-2024-38473","DEBIAN-CVE-2024-38473"],"status":"published","duplicateOf":null,"title":null,"description":"Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests.\nUsers are recommended to upgrade to version 2.4.60, which fixes this issue.","dates":{"published":"2024-07-01T18:14:21.520Z","modified":"2025-02-13T17:53:12.372Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Alpine","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":7.2,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":7.2,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":7.2,"impact":8.7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.25878,"percentile":0.97965,"severity":"high","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.25878},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.25878,"percentile":0.97965}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.25878,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.25878,"percentile":0.97965}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-116","name":"Improper Encoding or Escaping of Output","description":"The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/116.html"}],"affected":[{"vendor":"apache software foundation","product":"apache http server","name":"Apache HTTP Server","label":"apache http server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.4.0, ≤ 2.4.59","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.4.0, ≤ 2.4.59","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_http_server"},{"vendor":"apache","product":"http_server","name":"http server","label":"http_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.4.0, < 2.4.60","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.4.0, < 2.4.60","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"apache-http-server","label":"Apache HTTP Server","category":"server-app"}},"hubHref":"/vendor/apache/http_server"},{"vendor":"alpine","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/apache2","purlType":"apk","versions":[{"text":"< 2.4.60-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.60-r0","eol":null,"hubHref":null},{"vendor":"debian","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/apache2","purlType":"deb","versions":[{"text":"< 2.4.61-1~deb12u1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.60-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.61-1~deb12u1 | < 2.4.60-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"apache2","name":"apache2","label":"apache2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/apache2","purlType":"deb","versions":[{"text":"< 2.4.18-2ubuntu3.17+esm17","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.29-1ubuntu4.27+esm7","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.41-4ubuntu3.19","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.52-1ubuntu4.10","noFixRecorded":false,"fixedIn":null},{"text":"< 2.4.58-1ubuntu8.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.4.18-2ubuntu3.17+esm17 | < 2.4.29-1ubuntu4.27+esm7 | < 2.4.41-4ubuntu3.19 | < 2.4.52-1ubuntu4.10 | < 2.4.58-1ubuntu8.2","eol":null,"hubHref":null},{"vendor":"netapp","product":"ontap","name":"ontap","label":"ontap","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"9","noFixRecorded":false,"fixedIn":null}],"versionsText":"9","eol":{"isEol":null,"eolDate":null,"matchMethod":"alias_exact","cycle":null,"product":{"name":"netapp-ontap","label":"NetApp ONTAP","category":"os"}},"hubHref":"/vendor/netapp/ontap"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","label":"httpd.apache.org/security/vulnerabilities_24.html","hostname":"httpd.apache.org","tags":["Vendor Advisory","REPORT"]},{"url":"https://security.netapp.com/advisory/ntap-20240712-0001/","label":"security.netapp.com/advisory/ntap-20240712-0001/","hostname":"security.netapp.com","tags":["Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2024/07/01/6","label":"www.openwall.com/lists/oss-security/2024/07/01/6","hostname":"www.openwall.com","tags":["Mailing List"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2024-38473","label":"security.alpinelinux.org/vuln/CVE-2024-38473","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-38473","label":"ubuntu.com/security/CVE-2024-38473","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-38473","label":"www.cve.org/CVERecord?id=CVE-2024-38473","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2024-38473","label":"httpd.apache.org/security/vulnerabilities_24.html","hostname":"httpd.apache.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-6885-1","label":"ubuntu.com/security/notices/USN-6885-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-8338-1","label":"ubuntu.com/security/notices/USN-8338-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-38473","label":"security-tracker.debian.org/tracker/CVE-2024-38473","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38473","label":"nvd.nist.gov/vuln/detail/CVE-2024-38473","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":["DSA-5729-1","MGASA-2024-0258","OPENSUSE-SU-2024:14116-1","RHSA-2024:4720","RHSA-2024:4726","RHSA-2024:5001","RHSA-2024:5239","SUSE-SU-2024:2997-1","SUSE-SU-2024:2999-1","SUSE-SU-2024:3172-1","SUSE-SU-2024:3173-1","SUSE-SU-2026:2686-1","USN-6885-1","USN-8338-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:14116-1","SUSE-SU-2024:2997-1","SUSE-SU-2024:2999-1","SUSE-SU-2024:3172-1","SUSE-SU-2024:3173-1","SUSE-SU-2026:2686-1","USN-6885-1","USN-8338-1"]},"timeline":[{"kind":"published","date":"2024-07-01T18:14:21.520Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-02-13T17:53:12.372Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":38,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T08:25:19.565Z","stale":false,"partial":false}}