OESA-2026-2745 (CVE-2026-29167)

Vulnerability from osv_openeuler – Published: 2026-06-24 11:11 – Updated: 2026-08-06 11:11 – 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):

Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-29167)

A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration.

Users are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-29170)

A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-34355)

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-34356)

A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes.

Users are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-42535)

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-42536)

Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.

This issue affects Apache HTTP Server: from through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44119)

Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.

This issue affects undefined: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44186)

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44631)

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-2.4.51-33.oe2203sp4.aarch64.rpm",
          "httpd-debuginfo-2.4.51-33.oe2203sp4.aarch64.rpm",
          "httpd-debugsource-2.4.51-33.oe2203sp4.aarch64.rpm",
          "httpd-devel-2.4.51-33.oe2203sp4.aarch64.rpm",
          "httpd-tools-2.4.51-33.oe2203sp4.aarch64.rpm",
          "mod_ldap-2.4.51-33.oe2203sp4.aarch64.rpm",
          "mod_md-2.4.51-33.oe2203sp4.aarch64.rpm",
          "mod_proxy_html-2.4.51-33.oe2203sp4.aarch64.rpm",
          "mod_session-2.4.51-33.oe2203sp4.aarch64.rpm",
          "mod_ssl-2.4.51-33.oe2203sp4.aarch64.rpm"
        ],
        "noarch": [
          "httpd-filesystem-2.4.51-33.oe2203sp4.noarch.rpm",
          "httpd-help-2.4.51-33.oe2203sp4.noarch.rpm"
        ],
        "src": [
          "httpd-2.4.51-33.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "httpd-2.4.51-33.oe2203sp4.x86_64.rpm",
          "httpd-debuginfo-2.4.51-33.oe2203sp4.x86_64.rpm",
          "httpd-debugsource-2.4.51-33.oe2203sp4.x86_64.rpm",
          "httpd-devel-2.4.51-33.oe2203sp4.x86_64.rpm",
          "httpd-tools-2.4.51-33.oe2203sp4.x86_64.rpm",
          "mod_ldap-2.4.51-33.oe2203sp4.x86_64.rpm",
          "mod_md-2.4.51-33.oe2203sp4.x86_64.rpm",
          "mod_proxy_html-2.4.51-33.oe2203sp4.x86_64.rpm",
          "mod_session-2.4.51-33.oe2203sp4.x86_64.rpm",
          "mod_ssl-2.4.51-33.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": "2.4.51-33.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\nUse After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-29167)\n\nA cross-site scripting vulnerability exists in mod_proxy_ftp\u0026apos;s HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-29170)\n\nA buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend.\nUsers are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-34355)\n\nHeap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-34356)\n\nA path handling issue in mod_dav_fs in Apache 2.4.67 and earlier\u00a0allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes this issue.(CVE-2026-42535)\n\nHeap-based Buffer Overflow vulnerability in Apache HTTP Server with\u00a0mod_xml2enc, xml2StartParse, and untrusted content\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-42536)\n\nImproper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.\n\nThis issue affects Apache HTTP Server: from through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44119)\n\nLoop with Unreachable Exit Condition (\u0026apos;Infinite Loop\u0026apos;) vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server.\n\nThis issue affects undefined: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44186)\n\nBuffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44631)",
  "id": "OESA-2026-2745",
  "modified": "2026-08-06T11:11:40Z",
  "published": "2026-06-24T11:11:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2745"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29167"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29170"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34355"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34356"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42535"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42536"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44119"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44186"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44631"
    }
  ],
  "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-2026-29167",
    "CVE-2026-29170",
    "CVE-2026-34355",
    "CVE-2026-34356",
    "CVE-2026-42535",
    "CVE-2026-42536",
    "CVE-2026-44119",
    "CVE-2026-44186",
    "CVE-2026-44631"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.