ubuntu-cve-2026-29168
Vulnerability from osv_ubuntu
Published
2026-05-05 00:00
Modified
2026-06-04 10:59
Summary
Details
Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Severity
7.3 (High)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.52-1ubuntu4.20"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.52-1ubuntu4.20"
}
],
"priority_reason": "Apache httpd developers have rated this to be a low-severity issue"
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.52-1ubuntu4.20?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.52-1ubuntu4.20"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.48-3.1ubuntu3",
"2.4.48-3.1ubuntu4",
"2.4.51-2ubuntu1",
"2.4.52-1ubuntu1",
"2.4.52-1ubuntu2",
"2.4.52-1ubuntu4",
"2.4.52-1ubuntu4.1",
"2.4.52-1ubuntu4.2",
"2.4.52-1ubuntu4.3",
"2.4.52-1ubuntu4.4",
"2.4.52-1ubuntu4.5",
"2.4.52-1ubuntu4.6",
"2.4.52-1ubuntu4.7",
"2.4.52-1ubuntu4.8",
"2.4.52-1ubuntu4.9",
"2.4.52-1ubuntu4.10",
"2.4.52-1ubuntu4.11",
"2.4.52-1ubuntu4.12",
"2.4.52-1ubuntu4.13",
"2.4.52-1ubuntu4.14",
"2.4.52-1ubuntu4.15",
"2.4.52-1ubuntu4.16",
"2.4.52-1ubuntu4.18",
"2.4.52-1ubuntu4.19"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "libapache2-mod-md",
"binary_version": "2.4.58-1ubuntu8.12"
},
{
"binary_name": "libapache2-mod-proxy-uwsgi",
"binary_version": "2.4.58-1ubuntu8.12"
}
],
"priority_reason": "Apache httpd developers have rated this to be a low-severity issue"
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.58-1ubuntu8.12?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.58-1ubuntu8.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.57-2ubuntu2",
"2.4.57-2ubuntu3",
"2.4.58-1ubuntu1",
"2.4.58-1ubuntu2",
"2.4.58-1ubuntu6",
"2.4.58-1ubuntu7",
"2.4.58-1ubuntu8",
"2.4.58-1ubuntu8.1",
"2.4.58-1ubuntu8.2",
"2.4.58-1ubuntu8.3",
"2.4.58-1ubuntu8.4",
"2.4.58-1ubuntu8.5",
"2.4.58-1ubuntu8.6",
"2.4.58-1ubuntu8.7",
"2.4.58-1ubuntu8.8",
"2.4.58-1ubuntu8.10",
"2.4.58-1ubuntu8.11"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.64-1ubuntu3.4"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.64-1ubuntu3.4"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.64-1ubuntu3.4"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.64-1ubuntu3.4"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.64-1ubuntu3.4"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.64-1ubuntu3.4"
}
],
"priority_reason": "Apache httpd developers have rated this to be a low-severity issue"
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.64-1ubuntu3.4?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.64-1ubuntu3.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.63-1ubuntu1",
"2.4.63-1ubuntu3",
"2.4.64-1ubuntu2",
"2.4.64-1ubuntu3",
"2.4.64-1ubuntu3.2",
"2.4.64-1ubuntu3.3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "apache2",
"binary_version": "2.4.66-2ubuntu2.1"
},
{
"binary_name": "apache2-bin",
"binary_version": "2.4.66-2ubuntu2.1"
},
{
"binary_name": "apache2-data",
"binary_version": "2.4.66-2ubuntu2.1"
},
{
"binary_name": "apache2-suexec-custom",
"binary_version": "2.4.66-2ubuntu2.1"
},
{
"binary_name": "apache2-suexec-pristine",
"binary_version": "2.4.66-2ubuntu2.1"
},
{
"binary_name": "apache2-utils",
"binary_version": "2.4.66-2ubuntu2.1"
}
],
"priority_reason": "Apache httpd developers have rated this to be a low-severity issue"
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "apache2",
"purl": "pkg:deb/ubuntu/apache2@2.4.66-2ubuntu2.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.66-2ubuntu2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.64-1ubuntu3",
"2.4.65-3ubuntu1",
"2.4.66-2ubuntu1",
"2.4.66-2ubuntu2"
]
}
],
"aliases": [],
"details": "Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server\u0027s\u00a0 mod_md via OCSP response data. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.",
"id": "UBUNTU-CVE-2026-29168",
"modified": "2026-06-04T10:59:31Z",
"published": "2026-05-05T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-29168"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-29168"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8239-1"
}
],
"related": [
"USN-8239-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-29168"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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