High
lua-http — security advisory
Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. Such a request causes the program to enter an infinite loop. This issue affects lua-http: all versions before commit ddab283.
- Products
- lua-http
- Affected versions
- 0.1-3, 0.3-1, 0.4-1, 0.4-2, 0.4-3
- Fixed versions
- Not specified
- CVEs
- CVE-2023-4540
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:05 UTC · Revision 1
Source evidence
Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. Such a request causes the program to enter an infinite loop. This issue affects lua-http: all versions before commit ddab283.
osv:UBUNTU-CVE-2023-4540
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
lua-http
Fixed versions: Not specified
Complete source record
{
"id": "b1908a51e418e8b364a268707215e36308e4ef4a3583f7a1232bdf0ad01be0b9",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-4540",
"method": "structured",
"payload": {
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"title": "UBUNTU-CVE-2023-4540",
"summary": "Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. Such a request causes the program to enter an infinite loop. This issue affects lua-http: all versions before commit ddab283.",
"evidence": "osv:UBUNTU-CVE-2023-4540",
"products": [
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{
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]
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],
"severity": "high",
"structured": {
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"aliases": [
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],
"metrics": [
{
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
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],
"affected": [
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{
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"package": {
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"versions": [
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],
"modified": "2026-10-17T12:56:25.832452268Z",
"provider": "osv",
"upstream": [
"CVE-2023-4540"
],
"references": [
"https://ubuntu.com/security/CVE-2023-4540",
"https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6",
"https://cert.pl/posts/2023/09/CVE-2023-4540/",
"https://www.cve.org/CVERecord?id=CVE-2023-4540"
]
},
"related_cves": [
{
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"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355640,
"published_at": "2023-09-05T08:15:00+00:00"
}