UBUNTU-CVE-2026-90698

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Source
https://ubuntu.com/security/CVE-2026-90698
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90698.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-90698
Upstream
Downstream
Related
Published
2026-09-14T09:17:00Z
Modified
2026-09-25T00:44:00Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A security flaw has been discovered in memcached 1.6.41/1.6.42/1.6.43. This vulnerability affects the function try_read_command_asciiauth of the file proto_text.c of the component mcmc Tokenizer. The manipulation results in out-of-bounds read. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.44 is able to resolve this issue. The patch is identified as af05c9302bba508b736c3da1d5670f63fe8b7db4. You should upgrade the affected component.

References

Affected packages

Ubuntu:22.04:LTS / memcached

Package

Name
memcached
Purl
pkg:deb/ubuntu/memcached?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.6.14-1ubuntu0.3

Affected versions

1.*
1.6.9+dfsg-1build1
1.6.12+dfsg-2ubuntu1
1.6.12+dfsg-3
1.6.12+dfsg-4
1.6.13-1
1.6.14-1
1.6.14-1ubuntu0.1
1.6.14-1ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "memcached",
            "binary_version": "1.6.14-1ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90698.json"

Ubuntu:24.04:LTS / memcached

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.6.24-1ubuntu0.3

Affected versions

1.*
1.6.21-1
1.6.22-1
1.6.23-1
1.6.24-1build1
1.6.24-1build3
1.6.24-1ubuntu0.1
1.6.24-1ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "memcached",
            "binary_version": "1.6.24-1ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90698.json"

Ubuntu:26.04:LTS / memcached

Package

Name
memcached
Purl
pkg:deb/ubuntu/memcached?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.6.40-1ubuntu0.3

Affected versions

1.*
1.6.38-1build1
1.6.39-2
1.6.40-1
1.6.40-1ubuntu0.1
1.6.40-1ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "memcached",
            "binary_version": "1.6.40-1ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90698.json"