UBUNTU-CVE-2026-54275

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Source
https://ubuntu.com/security/CVE-2026-54275
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-54275
Upstream
Published
2026-06-22T18:16:00Z
Modified
2026-06-29T13:56:53.862553672Z
Severity
  • 2.7 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the serverhostname TLS SNI check can be bypassed when an existing connection is reused. If an application makes multiple requests to the same domain, but with different per-request serverhostname parameters, then the later calls may succeed by reusing the existing connection when they should have been rejected due to the TLS SNI check. This vulnerability is fixed in 3.14.1.

References

Affected packages

Ubuntu:16.04:LTS
python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:deb/ubuntu/python-aiohttp?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.17.2-1
0.17.4-1
0.17.4-1build1
0.20.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "0.20.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:25.10
python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:deb/ubuntu/python-aiohttp?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.10.11-1build1
3.11.16-1
3.11.16-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.11.16-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:26.04:LTS
python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:deb/ubuntu/python-aiohttp?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.11.16-1
3.13.1-1
3.13.3-3
3.13.3-3ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.13.3-3ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:Pro:18.04:LTS
python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

2.*
2.2.3-1build1
2.2.3-2
2.3.6-1
3.*
3.0.1-1
3.0.1-1ubuntu0.1~esm1
3.0.1-1ubuntu0.1~esm4
3.0.1-1ubuntu0.1~esm5
3.0.1-1ubuntu0.1~esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.0.1-1ubuntu0.1~esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:Pro:20.04:LTS
python-aiohttp

Package

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

Affected ranges

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

Affected versions

3.*
3.5.4-1
3.5.4-1build1
3.6.1-1
3.6.2-1
3.6.2-1build1
3.6.2-1ubuntu0.1~esm1
3.6.2-1ubuntu1
3.6.2-1ubuntu1+esm1
3.6.2-1ubuntu1+esm3
3.6.2-1ubuntu1+esm4
3.6.2-1ubuntu1+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.6.2-1ubuntu1+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:Pro:22.04:LTS
python-aiohttp

Package

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

Affected ranges

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

Affected versions

3.*
3.7.4-1
3.7.4-1build2
3.8.1-3
3.8.1-4
3.8.1-4build1
3.8.1-4ubuntu0.2
3.8.1-4ubuntu0.2+esm1
3.8.1-4ubuntu0.2+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.8.1-4ubuntu0.2+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"
Ubuntu:Pro:24.04:LTS
python-aiohttp

Package

Name
python-aiohttp
Purl
pkg:deb/ubuntu/python-aiohttp?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

3.*
3.8.4-1
3.9.1-1
3.9.1-1build1
3.9.1-1ubuntu0.1
3.9.1-1ubuntu0.1+esm1
3.9.1-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-aiohttp",
            "binary_version": "3.9.1-1ubuntu0.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54275.json"