Medium
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
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-32672
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:24 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:CVE-2021-32672
Complete source record
{
"id": "dd5a16620cae6f9fd44db96b31647f605effc4d573eadb09d8342cdc41b9a9a6",
"url": "https://osv.dev/vulnerability/CVE-2021-32672",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "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:CVE-2021-32672",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-32672",
"aliases": [
"BIT-keydb-2021-32672",
"BIT-redis-2021-32672",
"BIT-valkey-2021-32672",
"CVE-2021-32672",
"GHSA-9mj9-xx53-qmxm"
],
"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": [
{
"repo": "https://github.com/redis/redis",
"type": "GIT",
"events": [
{
"introduced": "7ca8fbabe2081b0c8f72074cdd8dd7ef1863b86c"
},
{
"fixed": "704ba5f5b22ae1ecafbcfb7a3258311c27ff94ff"
},
{
"introduced": "17dfd7cabbf7954f92b7a1243d4bb27fee5d4500"
},
{
"fixed": "5895d119b1c2825ff0394f30e246e036c3972bc5"
},
{
"introduced": "445aa844b946a8f1bc21ac8554b44adb1ecb4018"
},
{
"fixed": "4930d19e70c391750479951022e207e19111eb55"
},
{
"fixed": "6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0"
},
{
"fixed": "5.0.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.0.16"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.2.6"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"6.2.5",
"6.0.15",
"6.0.14",
"6.2.4",
"6.2.3",
"6.0.13",
"6.2.2",
"6.0.12",
"6.2.1",
"6.2.0",
"6.0.11",
"6.0.10",
"6.0.9",
"6.0.8",
"6.0.7",
"6.0.6",
"6.0.5",
"6.0.4",
"6.0.3",
"6.0.2",
"6.0.1",
"6.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32672.json",
"vanir_signatures": [
{
"id": "CVE-2021-32672-01c69a01",
"digest": {
"length": 976,
"function_hash": "317564125385647258631515446476228874390"
},
"source": "https://github.com/redis/redis/commit/6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd",
"target": {
"file": "src/scripting.c",
"function": "ldbReplParseCommand"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2021-32672-a6a86b05",
"digest": {
"threshold": 0.9,
"line_hashes": [
"120823697845019607967104986639700798388",
"337405370187524436283833662412188245874",
"52976036462305738424998361523712302715",
"115907040841008265734411993486152633984",
"256846541954209937173634192563606273301",
"297633993523308980491455845083339034562",
"191242670694469571052606084491816143893",
"85858321810069706237631181945602266083",
"22844239357405574869750516618680663975",
"62647965359387630850995374088275454075",
"130586143788112339966721377047393629423",
"62874166062077122208860006585632891800",
"63301309297223767187549666536846522567",
"295908773895324095532999580993573466312",
"109254972476570952022113907303005028396",
"210840498263843464085399252211921254403",
"184002517942049753791096239650357057129",
"87423852731040584958789893474557578187",
"174632260599682992664098521937441152434",
"145318702385646759471267174713706020286",
"143309227430553277608858302547395403419",
"27581698092889084160877172864466405694",
"301169613490832553977890726859332140605",
"117335125399649687496828982355804482076",
"105177812853954267859358698104382414315",
"271536164718951338784576564582849116746",
"303216379372443720130594988358165675928",
"295979210924331036103030261793518313731",
"72717110345814622862430976133406604053",
"176078479171233001523192828403324918169",
"112380243225641015549815642922215107898",
"296981066181595428244653779350797435253",
"338699234530122151201822880434941882731"
]
},
"source": "https://github.com/redis/redis/commit/6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd",
"target": {
"file": "src/scripting.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2021-32672-deba9155",
"digest": {
"length": 4875,
"function_hash": "316168307147346159691763691724516844826"
},
"source": "https://github.com/redis/redis/commit/6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd",
"target": {
"file": "src/scripting.c",
"function": "ldbRepl"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:21:14Z"
}
}
],
"modified": "2026-10-24T14:21:14.583458520Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/",
"https://github.com/redis/redis/security/advisories/GHSA-9mj9-xx53-qmxm",
"https://security.gentoo.org/glsa/202209-17",
"https://security.netapp.com/advisory/ntap-20211104-0003/",
"https://www.debian.org/security/2021/dsa-5001",
"https://github.com/redis/redis/commit/6ac3c0b7abd35f37201ed2d6298ecef4ea1ae1dd",
"https://www.oracle.com/security-alerts/cpuapr2022.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
},
{
"introduced": "11.0"
},
{
"last_affected": "11.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "33"
},
{
"last_affected": "33"
},
{
"introduced": "34"
},
{
"last_affected": "34"
},
{
"introduced": "35"
},
{
"last_affected": "35"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_operations_monitor:5.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_operations_monitor",
"extracted_events": [
{
"range": [
{
"introduced": "4.3"
},
{
"last_affected": "4.3"
},
{
"introduced": "4.4"
},
{
"last_affected": "4.4"
},
{
"introduced": "5.0"
},
{
"last_affected": "5.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:enterprise_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-32672",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443588,
"published_at": "2021-10-04T18:15:08.78+00:00"
}