High
Security advisory
An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-38512
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:25 UTC · Revision 1
Source evidence
An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.
osv:CVE-2021-38512
Complete source record
{
"id": "f02ccde7bbbfe3666255e22adbfcefaf1b22cc0f07820baf9b96e601bf209765",
"url": "https://osv.dev/vulnerability/CVE-2021-38512",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-38512",
"summary": "An issue was discovered in the actix-http crate before 3.0.0-beta.9 for Rust. HTTP/1 request smuggling (aka HRS) can occur, potentially leading to credential disclosure.",
"evidence": "osv:CVE-2021-38512",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-38512",
"aliases": [
"CVE-2021-38512",
"GHSA-8928-2fgm-6x9x",
"RUSTSEC-2021-0081"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/actix/actix-web",
"type": "GIT",
"events": [
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{
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{
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"source": "CPE_RANGE"
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}
],
"versions": [
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"multipart-v0.3.0-beta.2",
"actors-v3.0.0-beta.2",
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"http-v1.0.1",
"awc-v1.0.1",
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"http-v1.0.0",
"awc-v1.0.0",
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"v2.0.0-alpha.3",
"v2.0.0-alpha.1",
"web-v1.0.9",
"awc-v0.2.8",
"files-v0.1.7",
"http-v0.2.11",
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"web-v1.0.5",
"http-v0.2.7",
"web-v1.0.4",
"http-v0.2.6",
"http-test-v0.2.3",
"session-v0.2.0",
"awc-v0.2.2",
"web-v1.0.3",
"http-v0.2.5",
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"actors-v1.0.1",
"web-v1.0.2",
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"http-v0.2.4",
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"identity-v0.1.0",
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"web-v1.0.0-beta.4",
"framed-v0.2.0",
"awc-v0.2.0",
"http-v0.2.0",
"web-v1.0.0-beta.3",
"http-v0.1.5",
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"v1.0.0-alpha.6",
"v1.0.0-alpha.5",
"v1.0.0-alpha.4",
"v1.0.0-alpha.3",
"v1.0.0-alpha.2",
"http-v0.1.0-alpha.1",
"0.7.18",
"0.7.17",
"0.7.16",
"0.7.15",
"v0.7.14",
"v0.7.13",
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38512.json"
}
}
],
"modified": "2026-10-24T10:30:52.979843906Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/67URRW4K47SR6LNQB4YALPLGGQMQK7HO/",
"https://rustsec.org/advisories/RUSTSEC-2021-0081.html",
"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/actix-http/RUSTSEC-2021-0081.md"
],
"provider_metadata": {
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{
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{
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],
"vendor_product": "fedoraproject:fedora",
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{
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"source": "CPE_STRING"
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},
"related_cves": [
{
"value": "CVE-2021-38512",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437813,
"published_at": "2021-08-10T23:15:07.277+00:00"
}