HighFix available
redict, redis and 1 more products — security advisory
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
- Products
- redict, redis, valkey
- Affected versions
- 5:8.0.2-3, 5:8.0.2-3+deb13u1, 5:8.0.2-3+deb13u2, 5:8.0.4-1, 5:8.0.5-1, 5:8.0.6-1, 5:8.0.6-2, 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
- 5:8.0.2-3+deb13u3, 5:8.0.6-3, 8.1.1+dfsg1-3+deb13u3, 9.1.1-1
- CVEs
- CVE-2026-23479
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:18 UTC · Revision 2
Source evidence
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
osv:DEBIAN-CVE-2026-23479
redict
Fixed versions: Not specified
redis
Fixed versions: 5:8.0.2-3+deb13u3
redis
Fixed versions: 5:8.0.6-3
valkey
Fixed versions: 8.1.1+dfsg1-3+deb13u3
valkey
Fixed versions: 9.1.1-1
Complete source record
{
"id": "0f2c29c0b665ce158fc112e6a7139e8c061b426e238dc4d9d09e324f311d90d0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-23479",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-23479",
"summary": "Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.",
"evidence": "osv:DEBIAN-CVE-2026-23479",
"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": "redis",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5:8.0.2-3+deb13u3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "5:8.0.2-3",
"evidence": "/affected/1/versions"
},
{
"value": "5:8.0.2-3+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "5:8.0.2-3+deb13u2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "redis",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5:8.0.6-3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "5:8.0.2-3",
"evidence": "/affected/2/versions"
},
{
"value": "5:8.0.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "5:8.0.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "5:8.0.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "5:8.0.6-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "valkey",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.1+dfsg1-3+deb13u3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "8.1.1+dfsg1-3",
"evidence": "/affected/3/versions"
},
{
"value": "8.1.1+dfsg1-3+deb13u1",
"evidence": "/affected/3/versions"
},
{
"value": "8.1.1+dfsg1-3+deb13u2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "valkey",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.1.1-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": [
{
"value": "8.1.1+dfsg1-3",
"evidence": "/affected/4/versions"
},
{
"value": "8.1.4+dfsg1-1",
"evidence": "/affected/4/versions"
},
{
"value": "8.1.4+dfsg1-2",
"evidence": "/affected/4/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-23479",
"aliases": [
"DEBIAN-CVE-2026-23479"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/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-2026-23479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5:8.0.2-3+deb13u3"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:deb/debian/redis?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5:8.0.2-3",
"5:8.0.2-3+deb13u1",
"5:8.0.2-3+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5:8.0.6-3"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:deb/debian/redis?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"5:8.0.2-3",
"5:8.0.4-1",
"5:8.0.5-1",
"5:8.0.6-1",
"5:8.0.6-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-23479.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-2026-23479.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-2026-23479.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T05:00:07.780558226Z",
"provider": "osv",
"upstream": [
"CVE-2026-23479"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-23479"
]
},
"related_cves": [
{
"value": "CVE-2026-23479",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460294,
"published_at": "2026-05-05T17:17:02.577+00:00"
}