{
  "threat_severity" : "Low",
  "public_date" : "2026-05-04T14:48:29Z",
  "bugzilla" : {
    "description" : "httpd: NULL pointer dereference via specially crafted request",
    "id" : "2465296",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2465296"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-476",
  "details" : [ "A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.\nThe only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0.\nUsers are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.", "A flaw was found in the mod_dav_lock module of httpd. This vulnerability allows a remote unauthenticated attacker to crash the server due to a NULL pointer dereference via a specially crafted request." ],
  "statement" : "This issue allows an unauthenticated remote attacker to crash the server via a specially crafted request. However, the mod_dav_lock module is obsolete and rarely enabled in modern environments. The only known use-case for the module was mod_dav_svn from Apache Subversion earlier than version 1.2.0. Due to this reason, this vulnerability has been rated with a low severity.\nThis flaw only affects configurations with mod_dav_lock loaded and being used. This module can be disabled via the configuration file if its functionality is not being used.",
  "affected_release" : [ {
    "product_name" : "JBoss Core Services for RHEL 8",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27200",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el8",
    "package" : "jbcs-httpd24-httpd-0:2.4.62-13.el8jbcs"
  }, {
    "product_name" : "JBoss Core Services on RHEL 7",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27200",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1::el7",
    "package" : "jbcs-httpd24-httpd-0:2.4.62-13.el7jbcs"
  }, {
    "product_name" : "Red Hat JBoss Core Services 2.4.62.SP4",
    "release_date" : "2026-06-22T00:00:00Z",
    "advisory" : "RHSA-2026:27201",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1",
    "package" : "mod_dav_lock.so"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "release_date" : "2026-05-13T00:00:00Z",
    "advisory" : "RHSA-2026:17080",
    "cpe" : "cpe:/a:redhat:hummingbird:1",
    "package" : "httpd-main-2.4.67-1.hum1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Affected",
    "package_name" : "httpd:2.4/httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "httpd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-29169\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-29169\nhttps://httpd.apache.org/security/vulnerabilities_24.html" ],
  "name" : "CVE-2026-29169",
  "mitigation" : {
    "value" : "Disabling mod_dav_lock and restarting httpd will mitigate this flaw.",
    "lang" : "en:us"
  },
  "csaw" : false
}