CriticalFix available
lua5.4 — security advisory
singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.
- Products
- lua5.4
- Affected versions
- Not specified
- Fixed versions
- 5.4.3-r1, 5.4.4-r4
- CVEs
- CVE-2022-28805
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:11 UTC · Revision 1
Source evidence
singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.
osv:ALPINE-CVE-2022-28805
lua5.4
Fixed versions: 5.4.3-r1
lua5.4
Fixed versions: 5.4.3-r1
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
lua5.4
Fixed versions: 5.4.4-r4
Complete source record
{
"id": "eab29408161a13d4d696b0e396e1aac2fb3ad2c460b3eaa7faf567dec3ab9568",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-28805",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2022-28805",
"summary": "singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.",
"evidence": "osv:ALPINE-CVE-2022-28805",
"products": [
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"value": "lua5.4",
"evidence": "/affected/0/package/name"
},
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{
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"evidence": "/affected/0/ranges"
}
],
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{
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{
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{
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{
"name": {
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"affected_versions": []
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{
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"affected_versions": []
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{
"name": {
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"fixed_versions": [
{
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"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "ALPINE-CVE-2022-28805",
"aliases": [
"ALPINE-CVE-2022-28805"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.3-r1"
}
]
}
],
"package": {
"name": "lua5.4",
"purl": "pkg:apk/alpine/lua5.4?arch=source",
"ecosystem": "Alpine:v3.14"
},
"database_specific": {
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},
"ecosystem_specific": {}
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{
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{
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}
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"package": {
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"ecosystem": "Alpine:v3.15"
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"database_specific": {
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{
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],
"package": {
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"ecosystem": "Alpine:v3.16"
},
"database_specific": {
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},
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{
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"package": {
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"ecosystem": "Alpine:v3.17"
},
"database_specific": {
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"purl": "pkg:apk/alpine/lua5.4?arch=source",
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},
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},
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"package": {
"name": "lua5.4",
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},
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],
"package": {
"name": "lua5.4",
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"ecosystem": "Alpine:v3.23"
},
"database_specific": {
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},
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}
],
"modified": "2026-10-15T07:17:54.201646304Z",
"provider": "osv",
"upstream": [
"CVE-2022-28805"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-28805"
]
},
"related_cves": [
{
"value": "CVE-2022-28805",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 321822,
"published_at": "2022-04-08T06:15:07.243+00:00"
}