OESA-2026-4467 (CVE-2026-42528)

Vulnerability from osv_openeuler – Published: 2026-10-22 14:35 – Updated: 2026-10-22 14:35 – Source website
VLAI
Summary
httpd security update
Details

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.

Security Fix(es):

A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.

Users are recommended to upgrade to version 2.4.69, which fixes this issue(CVE-2026-42528)

NULL Pointer Dereference vulnerability in Apache HTTP Servers mod_heartmonitor over unicast listener.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-46729)

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's mod_session_cookie module.

When SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-47360)

Out-of-bounds Write vulnerability in Apache HTTP Server's mod_charset_lite.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56153)

Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...})

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56154)

Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-57941)

Internal state files accessible to external parties in mod_dav_fs in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows a remote client to read WebDAV dead properties of resources it cannot author via a GET request for the .DAV state directory

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-58415)

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)

Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)

Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response.

Users are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63045)

Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default.

Users are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63292)

A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails.

Users are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63686)

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding.

This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.(CVE-2026-63718)

Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir)

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-79768)

Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.(CVE-2026-93546)

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "httpd-2.4.51-37.oe2203sp4.aarch64.rpm",
          "httpd-debuginfo-2.4.51-37.oe2203sp4.aarch64.rpm",
          "httpd-debugsource-2.4.51-37.oe2203sp4.aarch64.rpm",
          "httpd-devel-2.4.51-37.oe2203sp4.aarch64.rpm",
          "httpd-tools-2.4.51-37.oe2203sp4.aarch64.rpm",
          "mod_ldap-2.4.51-37.oe2203sp4.aarch64.rpm",
          "mod_md-2.4.51-37.oe2203sp4.aarch64.rpm",
          "mod_proxy_html-2.4.51-37.oe2203sp4.aarch64.rpm",
          "mod_session-2.4.51-37.oe2203sp4.aarch64.rpm",
          "mod_ssl-2.4.51-37.oe2203sp4.aarch64.rpm"
        ],
        "noarch": [
          "httpd-filesystem-2.4.51-37.oe2203sp4.noarch.rpm",
          "httpd-help-2.4.51-37.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "httpd-2.4.51-37.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "httpd-2.4.51-37.oe2203sp4.x86_64.rpm",
          "httpd-debuginfo-2.4.51-37.oe2203sp4.x86_64.rpm",
          "httpd-debugsource-2.4.51-37.oe2203sp4.x86_64.rpm",
          "httpd-devel-2.4.51-37.oe2203sp4.x86_64.rpm",
          "httpd-tools-2.4.51-37.oe2203sp4.x86_64.rpm",
          "mod_ldap-2.4.51-37.oe2203sp4.x86_64.rpm",
          "mod_md-2.4.51-37.oe2203sp4.x86_64.rpm",
          "mod_proxy_html-2.4.51-37.oe2203sp4.x86_64.rpm",
          "mod_session-2.4.51-37.oe2203sp4.x86_64.rpm",
          "mod_ssl-2.4.51-37.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "httpd",
        "purl": "pkg:rpm/openEuler/httpd\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.51-37.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Critical"
  },
  "details": "Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server.\r\n\r\nSecurity Fix(es):\n\nA memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue(CVE-2026-42528)\n\nNULL Pointer Dereference vulnerability in Apache HTTP Servers mod_heartmonitor over unicast listener.\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-46729)\n\nExposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server\u0026apos;s mod_session_cookie module.\n\n\n\n\u00a0  \nWhen SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server.\n\n\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-47360)\n\nOut-of-bounds Write vulnerability in Apache HTTP Server\u0026apos;s mod_charset_lite.\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56153)\n\nUse After Free vulnerability in Apache HTTP Server\u0026apos;s mod_rewrite when using lookahead (%{LA-U:HTTP:...})\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-56154)\n\nUse After Free vulnerability in Apache HTTP Server\u0026apos;s mod_http2\u00a0via shared session-\u0026gt;bbtmp re-entrancy\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-57941)\n\nInternal state files accessible to external parties in mod_dav_fs in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows a remote client to read WebDAV dead properties of resources it cannot author via a GET request for the .DAV state directory\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-58415)\n\nOut-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59685)\n\nImproper Privilege Management vulnerability in Apache HTTP Server\u0026apos;s mod_ssl via SSLRequire and file-related expressions.\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-59797)\n\nImproper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63045)\n\nStack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63292)\n\nA NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue.(CVE-2026-63686)\n\nInconsistent Interpretation of HTTP Requests (\u0026apos;HTTP Request/Response Smuggling\u0026apos;) response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding.\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.(CVE-2026-63718)\n\nPath equivalence: \u0026apos;/./\u0026apos; (single dot directory) vulnerability in Apache HTTP Server\u0026apos;s mod_userdir module when configured with\u00a0absolute non-wildcard UserDir directive (the 2nd form in\u00a0https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir)\n\n\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.(CVE-2026-79768)\n\nInteger overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory\u0026apos;s property database via PROPPATCH requests declaring many XML namespaces.(CVE-2026-93546)",
  "id": "OESA-2026-4467",
  "modified": "2026-10-22T14:35:28Z",
  "published": "2026-10-22T14:35:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4467"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42528"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46729"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47360"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56153"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56154"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57941"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58415"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59685"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59797"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63045"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63292"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63686"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63718"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-79768"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93546"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "httpd security update",
  "upstream": [
    "CVE-2026-42528",
    "CVE-2026-46729",
    "CVE-2026-47360",
    "CVE-2026-56153",
    "CVE-2026-56154",
    "CVE-2026-57941",
    "CVE-2026-58415",
    "CVE-2026-59685",
    "CVE-2026-59797",
    "CVE-2026-63045",
    "CVE-2026-63292",
    "CVE-2026-63686",
    "CVE-2026-63718",
    "CVE-2026-79768",
    "CVE-2026-93546"
  ]
}



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