UBUNTU-CVE-2026-80179

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-80179
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-80179
Upstream
  • CVE-2026-80179
Published
2026-08-28T00:18:00Z
Modified
2026-09-02T16:27:48Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in jwcrypto. A remote attacker can send a specially crafted JSON Web Encryption (JWE) token containing numerous period delimiters. This malformed token can force the JWE.deserialize() function to allocate excessive memory, leading to a MemoryError. This issue results in a denial of service (DoS) for services that process untrusted JWE values.

References

Affected packages

Ubuntu:16.04:LTS
python-jwcrypto

Package

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

Affected ranges

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

Affected versions

0.*
0.2.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.2.1-1",
            "binary_name": "python-jwcrypto"
        },
        {
            "binary_version": "0.2.1-1",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"
Ubuntu:18.04:LTS
python-jwcrypto

Package

Name
python-jwcrypto
Purl
pkg:deb/ubuntu/python-jwcrypto?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.3.2-1
0.4.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.2-1",
            "binary_name": "python-jwcrypto"
        },
        {
            "binary_version": "0.4.2-1",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"
Ubuntu:20.04:LTS
python-jwcrypto

Package

Name
python-jwcrypto
Purl
pkg:deb/ubuntu/python-jwcrypto?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.6.0-1
0.6.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.6.0-2",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"
Ubuntu:22.04:LTS
python-jwcrypto

Package

Name
python-jwcrypto
Purl
pkg:deb/ubuntu/python-jwcrypto?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.8.0-1
1.*
1.0.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.0-2",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"
Ubuntu:24.04:LTS
python-jwcrypto

Package

Name
python-jwcrypto
Purl
pkg:deb/ubuntu/python-jwcrypto?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.1.0-1
1.5.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.4-1",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"
Ubuntu:26.04:LTS
python-jwcrypto

Package

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

Affected ranges

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

Affected versions

1.*
1.5.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.6-1",
            "binary_name": "python3-jwcrypto"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80179.json"