UBUNTU-CVE-2026-56684
- 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.osv.dev/v1/vulns/UBUNTU-CVE-2026-56684
- Upstream
- Downstream
- Related
- Published
- 2026-08-18T15:16:00Z
- Modified
- 2026-09-17T13:30:07Z
- 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
-
- https://ubuntu.com/security/CVE-2026-56684
- https://www.cve.org/CVERecord?id=CVE-2026-56684
- https://github.com/valkey-io/valkey/security/advisories/GHSA-53mc-f3m3-99vh
- https://github.com/valkey-io/valkey/pull/4234
- https://github.com/valkey-io/valkey/commit/33b14adf2026cfd8728607b026edb24843805844
- https://ubuntu.com/security/notices/USN-8771-1
Affected packages
Ubuntu:Pro:24.04:LTS / valkey
Package
- Name
- valkey
- Purl
- pkg:deb/ubuntu/valkey?arch=source&distro=esm-apps%2Fnoble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7.2.13+dfsg1-0ubuntu0.1+esm1
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
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "valkey-redis-compat",
"binary_version": "7.2.13+dfsg1-0ubuntu0.1+esm1"
},
{
"binary_name": "valkey-sentinel",
"binary_version": "7.2.13+dfsg1-0ubuntu0.1+esm1"
},
{
"binary_name": "valkey-server",
"binary_version": "7.2.13+dfsg1-0ubuntu0.1+esm1"
},
{
"binary_name": "valkey-tools",
"binary_version": "7.2.13+dfsg1-0ubuntu0.1+esm1"
}
]
}
Ubuntu:26.04:LTS / valkey
Package
- Name
- valkey
- Purl
- pkg:deb/ubuntu/valkey?arch=source&distro=resolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed9.0.4-0ubuntu0.2
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
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "valkey-sentinel",
"binary_version": "9.0.4-0ubuntu0.2"
},
{
"binary_name": "valkey-server",
"binary_version": "9.0.4-0ubuntu0.2"
},
{
"binary_name": "valkey-tools",
"binary_version": "9.0.4-0ubuntu0.2"
}
]
}