MediumFix available
resteasy3.0 — security advisory
A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.
- Products
- resteasy3.0
- Affected versions
- Not specified
- Fixed versions
- 3.0.26-4
- CVEs
- CVE-2020-10688
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 12:28 UTC · Revision 1
Source evidence
A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.
osv:DEBIAN-CVE-2020-10688
resteasy3.0
Fixed versions: 3.0.26-4
resteasy3.0
Fixed versions: 3.0.26-4
resteasy3.0
Fixed versions: 3.0.26-4
Complete source record
{
"id": "1f86e8a58c84206683178738c2bb67de9be4cb25df1ea4e7a657d804c94b9907",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-10688",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-10688",
"summary": "A cross-site scripting (XSS) flaw was found in RESTEasy in versions before 3.11.1.Final and before 4.5.3.Final, where it did not properly handle URL encoding when the RESTEASY003870 exception occurs. An attacker could use this flaw to launch a reflected XSS attack.",
"evidence": "osv:DEBIAN-CVE-2020-10688",
"products": [
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.26-4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.26-4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.26-4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-10688",
"aliases": [
"DEBIAN-CVE-2020-10688"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.26-4"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/debian/resteasy3.0?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-10688.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.26-4"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/debian/resteasy3.0?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-10688.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.26-4"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/debian/resteasy3.0?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-10688.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:00:15.628863883Z",
"provider": "osv",
"upstream": [
"CVE-2020-10688"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-10688"
]
},
"related_cves": [
{
"value": "CVE-2020-10688",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451042,
"published_at": "2021-05-27T19:15:07.643+00:00"
}