MediumFix available
redis — security advisory
Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.
- Products
- redis
- Affected versions
- Not specified
- Fixed versions
- 5.0.14-r0, 6.0.16-r0, 6.2.6-r0
- CVEs
- CVE-2021-32672
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:04 UTC · Revision 1
Source evidence
Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.
osv:ALPINE-CVE-2021-32672
redis
Fixed versions: 5.0.14-r0
redis
Fixed versions: 5.0.14-r0
redis
Fixed versions: 6.0.16-r0
redis
Fixed versions: 6.2.6-r0
redis
Fixed versions: 6.2.6-r0
redis
Fixed versions: 6.2.6-r0
redis
Fixed versions: 6.2.6-r0
redis
Fixed versions: 6.2.6-r0
redis
Fixed versions: 6.2.6-r0
Complete source record
{
"id": "793cecb7c0c543b5de822766c810931fdd7fb77987e3b86db37df7a6e418fb1c",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2021-32672",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2021-32672",
"summary": "Redis is an open source, in-memory database that persists on disk. When using the Redis Lua Debugger, users can send malformed requests that cause the debugger’s protocol parser to read data beyond the actual buffer. This issue affects all versions of Redis with Lua debugging support (3.2 or newer). The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14.",
"evidence": "osv:ALPINE-CVE-2021-32672",
"products": [
{
"name": {
"value": "redis",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.0.14-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.0.14-r0",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.0.16-r0",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "redis",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.2.6-r0",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "ALPINE-CVE-2021-32672",
"aliases": [
"ALPINE-CVE-2021-32672"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "5.0.14-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.11"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "5.0.14-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.12"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.0.16-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.13"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.14"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.15"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.16"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.17"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.18"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "6.2.6-r0"
}
]
}
],
"package": {
"name": "redis",
"purl": "pkg:apk/alpine/redis?arch=source",
"ecosystem": "Alpine:v3.19"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-32672.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:17:56.188659462Z",
"provider": "osv",
"upstream": [
"CVE-2021-32672"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2021-32672"
]
},
"related_cves": [
{
"value": "CVE-2021-32672",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415445,
"published_at": "2021-10-04T18:15:08.78+00:00"
}