UBUNTU-CVE-2026-58187

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Source
https://ubuntu.com/security/CVE-2026-58187
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-58187
Upstream
  • CVE-2026-58187
Published
2026-07-30T00:00:00Z
Modified
2026-07-30T16:00:42.744450285Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

References

Affected packages

Ubuntu:16.04:LTS / trafficserver

Package

Name
trafficserver
Purl
pkg:deb/ubuntu/trafficserver?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.3.0-2ubuntu1
5.3.0-2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "trafficserver",
            "binary_version": "5.3.0-2ubuntu2"
        },
        {
            "binary_name": "trafficserver-experimental-plugins",
            "binary_version": "5.3.0-2ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json"

Ubuntu:18.04:LTS / trafficserver

Package

Name
trafficserver
Purl
pkg:deb/ubuntu/trafficserver?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.0.0-5
7.1.2+ds-2
7.1.2+ds-2build1
7.1.2+ds-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "trafficserver",
            "binary_version": "7.1.2+ds-3"
        },
        {
            "binary_name": "trafficserver-experimental-plugins",
            "binary_version": "7.1.2+ds-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json"

Ubuntu:Pro:20.04:LTS / trafficserver

Package

Name
trafficserver
Purl
pkg:deb/ubuntu/trafficserver?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.0.5+ds-1
8.0.5+ds-2
8.0.5+ds-2build1
8.0.5+ds-2ubuntu1
8.0.5+ds-3
8.0.5+ds-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "trafficserver",
            "binary_version": "8.0.5+ds-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "trafficserver-experimental-plugins",
            "binary_version": "8.0.5+ds-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json"

Ubuntu:Pro:22.04:LTS / trafficserver

Package

Name
trafficserver
Purl
pkg:deb/ubuntu/trafficserver?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.1.1+ds-1.1
9.*
9.1.1+ds-2build1
9.1.1+ds-2ubuntu0.1~esm1
9.1.1+ds-2ubuntu0.1
9.1.1+ds-2ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "trafficserver",
            "binary_version": "9.1.1+ds-2ubuntu0.1+esm1"
        },
        {
            "binary_name": "trafficserver-experimental-plugins",
            "binary_version": "9.1.1+ds-2ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json"

Ubuntu:24.04:LTS / trafficserver

Package

Name
trafficserver
Purl
pkg:deb/ubuntu/trafficserver?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

9.*
9.2.1+ds-1build1
9.2.2+ds-1
9.2.3+ds-1
9.2.3+ds-1+deb12u1
9.2.3+ds-1+deb12u1build1
9.2.3+ds-1+deb12u1build3
9.2.3+ds-1+deb12u1build4
9.2.3+ds-1+deb12u1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "trafficserver",
            "binary_version": "9.2.3+ds-1+deb12u1ubuntu0.1"
        },
        {
            "binary_name": "trafficserver-experimental-plugins",
            "binary_version": "9.2.3+ds-1+deb12u1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58187.json"