UBUNTU-CVE-2026-56684

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Source
https://ubuntu.com/security/CVE-2026-56684
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56684.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-56684
Upstream
Published
2026-08-18T15:16:00Z
Modified
2026-09-02T19:41:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.

References

Affected packages

Ubuntu:24.04:LTS / valkey

Package

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

Affected ranges

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

Affected versions

7.*
7.2.5+dfsg1-2ubuntu4~24.04.1
7.2.7+dfsg1-0ubuntu0.24.04.1
7.2.8+dfsg1-0ubuntu0.24.04.1
7.2.8+dfsg1-0ubuntu0.24.04.2
7.2.8+dfsg1-0ubuntu0.24.04.3
7.2.10+dfsg1-0ubuntu0.1
7.2.11+dfsg1-0ubuntu0.1
7.2.11+dfsg1-0ubuntu0.2
7.2.12+dfsg1-0ubuntu0.1
7.2.13+dfsg1-0ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "valkey-redis-compat",
            "binary_version": "7.2.13+dfsg1-0ubuntu0.1"
        },
        {
            "binary_name": "valkey-sentinel",
            "binary_version": "7.2.13+dfsg1-0ubuntu0.1"
        },
        {
            "binary_name": "valkey-server",
            "binary_version": "7.2.13+dfsg1-0ubuntu0.1"
        },
        {
            "binary_name": "valkey-tools",
            "binary_version": "7.2.13+dfsg1-0ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56684.json"

Ubuntu:26.04:LTS / valkey

Package

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

Affected ranges

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

Affected versions

8.*
8.1.3+dfsg1-0ubuntu2
8.1.4+dfsg1-0ubuntu1
9.*
9.0.2-0ubuntu1
9.0.3-0ubuntu1
9.0.3-0ubuntu2
9.0.4-0ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "valkey-sentinel",
            "binary_version": "9.0.4-0ubuntu0.1"
        },
        {
            "binary_name": "valkey-server",
            "binary_version": "9.0.4-0ubuntu0.1"
        },
        {
            "binary_name": "valkey-tools",
            "binary_version": "9.0.4-0ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56684.json"