HighFix available
redict, valkey — security advisory
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.
- Products
- redict, valkey
- Affected versions
- 7.3.0+ds-1, 7.3.0+ds-2, 7.3.0+ds-3, 7.3.0+ds-3~bpo12+1, 7.3.1+ds-1, 7.3.2+ds-1, 7.3.2+ds-1~bpo12+1, 7.3.5+ds-1, 7.3.5+ds-1~bpo12+1, 7.3.6+ds-1, 7.3.6+ds-1~bpo12+1, 7.3.6+ds-1~bpo13+1, 7.3.6+ds-2, 7.3.6+ds-2~bpo12+1, 7.3.6+ds-2~bpo13+1, 7.3.6+ds-3, 8.1.1+dfsg1-3, 8.1.1+dfsg1-3+deb13u1, 8.1.1+dfsg1-3+deb13u2, 8.1.4+dfsg1-1, 8.1.4+dfsg1-2
- Fixed versions
- 8.1.1+dfsg1-3+deb13u3, 9.1.1-1
- CVEs
- CVE-2026-56684
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:21 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2026-56684
redict
Fixed versions: Not specified
valkey
Fixed versions: 8.1.1+dfsg1-3+deb13u3
valkey
Fixed versions: 9.1.1-1
Complete source record
{
"id": "181a1e469b236ac75cbe1f0c9f36a082c74d35eb61dd32710ba5b52bceaf42c6",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-56684",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-56684",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2026-56684",
"products": [
{
"name": {
"value": "redict",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "7.3.0+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.0+ds-2",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.0+ds-3",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.0+ds-3~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.1+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.2+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.2+ds-1~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.5+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.5+ds-1~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-1~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-1~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-2",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-2~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-2~bpo13+1",
"evidence": "/affected/0/versions"
},
{
"value": "7.3.6+ds-3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "valkey",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.1+dfsg1-3+deb13u3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "8.1.1+dfsg1-3",
"evidence": "/affected/1/versions"
},
{
"value": "8.1.1+dfsg1-3+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "8.1.1+dfsg1-3+deb13u2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "valkey",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.1.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "8.1.1+dfsg1-3",
"evidence": "/affected/2/versions"
},
{
"value": "8.1.4+dfsg1-1",
"evidence": "/affected/2/versions"
},
{
"value": "8.1.4+dfsg1-2",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-56684",
"aliases": [
"DEBIAN-CVE-2026-56684"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "redict",
"purl": "pkg:deb/debian/redict?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"7.3.0+ds-1",
"7.3.0+ds-2",
"7.3.0+ds-3",
"7.3.0+ds-3~bpo12+1",
"7.3.1+ds-1",
"7.3.2+ds-1",
"7.3.2+ds-1~bpo12+1",
"7.3.5+ds-1",
"7.3.5+ds-1~bpo12+1",
"7.3.6+ds-1",
"7.3.6+ds-1~bpo12+1",
"7.3.6+ds-1~bpo13+1",
"7.3.6+ds-2",
"7.3.6+ds-2~bpo12+1",
"7.3.6+ds-2~bpo13+1",
"7.3.6+ds-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.1.1+dfsg1-3+deb13u3"
}
]
}
],
"package": {
"name": "valkey",
"purl": "pkg:deb/debian/valkey?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"8.1.1+dfsg1-3",
"8.1.1+dfsg1-3+deb13u1",
"8.1.1+dfsg1-3+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.1.1-1"
}
]
}
],
"package": {
"name": "valkey",
"purl": "pkg:deb/debian/valkey?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"8.1.1+dfsg1-3",
"8.1.4+dfsg1-1",
"8.1.4+dfsg1-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56684.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T05:00:08.416267721Z",
"provider": "osv",
"upstream": [
"CVE-2026-56684"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-56684"
]
},
"related_cves": [
{
"value": "CVE-2026-56684",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460344,
"published_at": "2026-08-18T15:16:55.463+00:00"
}