UBUNTU-CVE-2026-54464

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Source
https://ubuntu.com/security/CVE-2026-54464
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-54464
Upstream
Published
2026-07-17T20:17:00Z
Modified
2026-07-29T10:18:37Z
Severity
  • 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:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Impact If this library is used in tandem with the permessage-deflate extension, a WebSocket server or client can be made to accept messages that are larger than the configured maximum message size. This is because this limit is checked against the message frames' length headers, which give the size of the compressed data, not the size after decompression. This can lead to applications accepting larger messages than expected and exceeding their intended resource usage. ### Patches The issue has been patched in version 0.8.1, by checking the length of messages after they are processed by incoming extensions. All users should upgrade to this version. ### Workarounds No known workarounds exist. ### Acknowledgements This issue was discovered and reported by Pranjali Thakur, DepthFirst Security Research Team.

References

Affected packages

Ubuntu:16.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.6.3-1
0.6.3-1build1
0.6.3-2
0.6.3-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"
Ubuntu:18.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.6.3-2build1
0.6.3-2build2
0.6.3-2build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-2build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"
Ubuntu:20.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.6.3-2build3
0.6.3-2build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-2build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"
Ubuntu:22.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.6.3-3build1
0.6.3-3build2
0.6.3-3build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-3build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"
Ubuntu:24.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.6.3-3build5
0.6.3-3build6
0.6.3-3build7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-3build7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"
Ubuntu:26.04:LTS
ruby-websocket-driver

Package

Name
ruby-websocket-driver
Purl
pkg:deb/ubuntu/ruby-websocket-driver?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.6.3-3ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-websocket-driver",
            "binary_version": "0.6.3-3ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54464.json"