Security advisory
HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-38667
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 02:30 UTC · Revision 1
Source evidence
HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.
osv:CVE-2022-38667
Complete source record
{
"id": "e008a13448d689fa030f6fc3ed593bdd0cbe298c334f98bf71cc79315236337d",
"url": "https://osv.dev/vulnerability/CVE-2022-38667",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-38667",
"summary": "HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.",
"evidence": "osv:CVE-2022-38667",
"products": [],
"severity": "unknown",
"structured": {
"id": "CVE-2022-38667",
"aliases": [
"CVE-2022-38667"
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/crowcpp/crow",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "62dae4cc32229e372bb81c0a20c19f2727345e71"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.0+4"
}
],
"source": "DESCRIPTION"
},
{
"cpe": "cpe:2.3:a:crowcpp:crow:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.0\\+4"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v1.0+4",
"v1.0+3",
"v1.0+2",
"v1.0+1",
"v1.0",
"v0.3",
"0.2",
"v0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-38667.json"
}
}
],
"modified": "2026-10-28T02:30:49.059128125Z",
"provider": "osv",
"references": [
"https://cwe.mitre.org/data/definitions/372.html",
"https://github.com/0xhebi/CVEs/blob/main/Crow/CVE-2022-38667.md",
"https://gynvael.coldwind.pl/?id=753",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/38xxx/CVE-2022-38667.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-38667",
"https://github.com/CrowCpp/Crow/pull/524"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/38xxx/CVE-2022-38667.json"
}
},
"related_cves": [
{
"value": "CVE-2022-38667",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 517376,
"published_at": "2022-08-22T19:07:43+00:00"
}