High
Security advisory
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-17513
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:35 UTC · Revision 1
Source evidence
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.
osv:CVE-2019-17513
Complete source record
{
"id": "c0fad671b4fb38ceede8244f623f66bcff061b16ffdb9071d8879af216b016a3",
"url": "https://osv.dev/vulnerability/CVE-2019-17513",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-17513",
"summary": "An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.",
"evidence": "osv:CVE-2019-17513",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-17513",
"aliases": [
"CVE-2019-17513",
"GHSA-mvqp-q37c-wf9j"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ratpack/ratpack",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "02f8e6b9076eab03e9227b3ccbbdee952355f7b9"
},
{
"fixed": "c560a8d10cb8bdd7a526c1ca2e67c8f224ca23ae"
},
{
"fixed": "efb910d38a96494256f36675ef0e5061097dd77d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ratpack_project:ratpack:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.7.5"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "c560a8d10cb8bdd7a526c1ca2e67c8f224ca23ae"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "efb910d38a96494256f36675ef0e5061097dd77d"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "02f8e6b9076eab03e9227b3ccbbdee952355f7b9"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v1.7.5"
}
]
}
}
],
"versions": [
"v1.7.4",
"v1.7.3",
"v1.7.2",
"v1.7.1",
"v1.7.0",
"v1.6.0",
"v1.6.0-rc-4",
"v1.6.0-rc-3",
"v1.6.0-rc-2",
"1.6.0-rc-1",
"v1.5.0",
"v1.5.0-rc-3",
"v1.5.0-rc-1",
"v1.4.0",
"v1.4.0-rc-3",
"v1.4.0-rc-2",
"v1.4.0-rc-1",
"v1.3.1",
"v1.3.0",
"v1.3.0-rc-2",
"v1.3.0-rc-1",
"v1.2.0",
"v1.2.0-rc-2",
"v1.2.0-RC-1",
"v1.1.1",
"v1.1.0",
"v1.0.0",
"v1.0.0-rc-3",
"v1.0.0-rc-2",
"v1.0.0-rc-1",
"v0.9.19",
"v0.9.18",
"v0.9.17",
"v0.9.16",
"v0.9.15",
"v0.9.14",
"v0.9.13",
"v0.9.12",
"v0.9.11",
"v0.9.10",
"v0.9.9",
"v0.9.8",
"v0.9.7",
"v0.9.6",
"v0.9.5",
"v0.9.4",
"v0.9.3",
"v0.9.2",
"v0.9.1",
"v0.9.0",
"0.6.1",
"0.5.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17513.json",
"vanir_signatures": [
{
"id": "CVE-2019-17513-58fd1cb3",
"digest": {
"length": 2737,
"function_hash": "316688032063787779101292422721492487926"
},
"source": "https://github.com/ratpack/ratpack/commit/efb910d38a96494256f36675ef0e5061097dd77d",
"target": {
"file": "ratpack-core/src/main/java/ratpack/server/internal/NettyHandlerAdapter.java",
"function": "newRequest"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-17513-b3a1caf4",
"digest": {
"threshold": 0.9,
"line_hashes": [
"314384977944997157326766606166716536607",
"299455186994735692910888951443078280123",
"306215249784964445081505597330082683274",
"94291133209474141190259058947212806303"
]
},
"source": "https://github.com/ratpack/ratpack/commit/efb910d38a96494256f36675ef0e5061097dd77d",
"target": {
"file": "ratpack-core/src/main/java/ratpack/server/internal/NettyHandlerAdapter.java"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:55:53Z"
}
}
],
"modified": "2026-10-20T13:55:53.576562659Z",
"provider": "osv",
"references": [
"https://github.com/ratpack/ratpack/releases/tag/v1.7.5",
"https://github.com/ratpack/ratpack/security/advisories/GHSA-mvqp-q37c-wf9j",
"https://ratpack.io/versions/1.7.5",
"https://github.com/ratpack/ratpack/commit/c560a8d10cb8bdd7a526c1ca2e67c8f224ca23ae",
"https://github.com/ratpack/ratpack/commit/efb910d38a96494256f36675ef0e5061097dd77d"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-17513",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388391,
"published_at": "2019-10-18T03:15:09.897+00:00"
}