High
Security advisory
In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-20883
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:39 UTC · Revision 1
Source evidence
In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.
osv:CVE-2023-20883
Complete source record
{
"id": "00f5fdcf2ed096fc0132e6684e119f73b79ed92691917f17510bc56cf82ba17f",
"url": "https://osv.dev/vulnerability/CVE-2023-20883",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2023-20883",
"summary": "In Spring Boot versions 3.0.0 - 3.0.6, 2.7.0 - 2.7.11, 2.6.0 - 2.6.14, 2.5.0 - 2.5.14 and older unsupported versions, there is potential for a denial-of-service (DoS) attack if Spring MVC is used together with a reverse proxy cache.",
"evidence": "osv:CVE-2023-20883",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2023-20883",
"aliases": [
"CVE-2023-20883",
"GHSA-xf96-w227-r7c4"
],
"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": [
{
"repo": "https://github.com/spring-projects/spring-boot",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "93b52f7e11f3d9bf2a4a4922ba31fdb9a0b48d74"
},
{
"introduced": "44047f322d50c365941b59ff782e15b605a457ea"
},
{
"last_affected": "548e8e0d369f77d54b8b748d71309816dd5981f2"
},
{
"introduced": "1168d664487a3776b45f94a125dfd98cc841626b"
},
{
"last_affected": "36589df7b9eca90568a1a833a76a4c97f7d30d06"
},
{
"introduced": "c9c359fd271d1b51bf16f50d685c49fa40ca1b8a"
},
{
"last_affected": "6ce78443481350522a46a1696401f6cc33aee494"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.5.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.6.0"
},
{
"last_affected": "2.6.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.0"
},
{
"last_affected": "2.7.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"last_affected": "3.0.6"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v3.0.6",
"v2.7.11",
"v2.6.14",
"v1.0.0.RC4",
"v1.0.0.RC3"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-20883.json"
}
}
],
"modified": "2026-10-28T02:30:30.074547614Z",
"provider": "osv",
"references": [
"https://spring.io/security/cve-2023-20883",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/20xxx/CVE-2023-20883.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-20883",
"https://security.netapp.com/advisory/ntap-20230703-0008/"
],
"provider_metadata": {
"cwe_ids": [
"CWE-400"
],
"cna_assigner": "vmware",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"last_affected": "2.5.14"
}
],
"source": "AFFECTED_FIELD",
"strategy": "VersionTextExtraction"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/20xxx/CVE-2023-20883.json"
}
},
"related_cves": [
{
"value": "CVE-2023-20883",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496907,
"published_at": "2023-05-26T00:00:00+00:00"
}