UBUNTU-CVE-2026-65100

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Source
https://ubuntu.com/security/CVE-2026-65100
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-65100.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-65100
Upstream
Published
2026-07-29T10:16:00Z
Modified
2026-08-06T00:23:22Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/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:N/SC:N/SI:L/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Apache Traffic Server updates the HTTP/2 HPACK dynamic table before confirming the header block encoded successfully, so an encode failure leaves the encoder out of sync with the peer decoder and corrupts subsequent header blocks on the connection. 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
0 Unknown 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-2026-65100.json"

Ubuntu:18.04:LTS / trafficserver

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-65100.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
0 Unknown 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-2026-65100.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
0 Unknown 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-2026-65100.json"

Ubuntu:24.04:LTS / trafficserver

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-65100.json"