High
resteasy, resteasy3.0 — security advisory
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.
- Products
- resteasy, resteasy3.0
- Affected versions
- 3.0.19-1, 3.0.19-2, 3.0.26-1, 3.0.26-1ubuntu0.1~esm1, 3.0.26-1~18.04, 3.0.26-1~18.04.1~esm1, 3.0.26-2, 3.0.26-3, 3.0.26-3ubuntu0.1, 3.0.26-6, 3.0.26-6ubuntu0.24.04.1, 3.0.6-3, 3.0.6-3ubuntu0.1~esm1, 3.6.2-2, 3.6.2-2ubuntu0.20.04.1~esm1, 3.6.2-2ubuntu0.22.04.1~esm1, 3.6.2-2ubuntu0.24.04.1~esm1, 3.6.2-3, 3.6.2-4
- Fixed versions
- Not specified
- CVEs
- CVE-2026-89058
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:30 UTC · Revision 1
Source evidence
A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins ("*"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.
osv:UBUNTU-CVE-2026-89058
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
resteasy
Fixed versions: Not specified
resteasy3.0
Fixed versions: Not specified
Complete source record
{
"id": "f746efaa4abf044f1aaec3ca273568405b0bc15128f670d5111c5a25ef5a85ac",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-89058",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-89058",
"summary": "A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins (\"*\"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.",
"evidence": "osv:UBUNTU-CVE-2026-89058",
"products": [
{
"name": {
"value": "resteasy",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.6-3",
"evidence": "/affected/0/versions"
},
{
"value": "3.0.6-3ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.19-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.0.19-2",
"evidence": "/affected/1/versions"
},
{
"value": "3.0.26-1~18.04",
"evidence": "/affected/1/versions"
},
{
"value": "3.0.26-1~18.04.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "resteasy",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.6.2-2",
"evidence": "/affected/2/versions"
},
{
"value": "3.6.2-2ubuntu0.20.04.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.26-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.26-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.26-2",
"evidence": "/affected/4/versions"
},
{
"value": "3.0.26-3",
"evidence": "/affected/4/versions"
},
{
"value": "3.0.26-3ubuntu0.1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "resteasy",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.6.2-2",
"evidence": "/affected/5/versions"
},
{
"value": "3.6.2-2ubuntu0.22.04.1~esm1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.26-6",
"evidence": "/affected/6/versions"
},
{
"value": "3.0.26-6ubuntu0.24.04.1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "resteasy",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.6.2-2",
"evidence": "/affected/7/versions"
},
{
"value": "3.6.2-2ubuntu0.24.04.1~esm1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "resteasy",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.6.2-4",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.26-6",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "resteasy",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.6.2-3",
"evidence": "/affected/10/versions"
},
{
"value": "3.6.2-4",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "resteasy3.0",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.26-6",
"evidence": "/affected/11/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-89058",
"aliases": [
"UBUNTU-CVE-2026-89058"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"3.0.6-3",
"3.0.6-3ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.0.6-3ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"3.0.19-1",
"3.0.19-2",
"3.0.26-1~18.04",
"3.0.26-1~18.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-1~18.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"3.6.2-2",
"3.6.2-2ubuntu0.20.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.6.2-2ubuntu0.20.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"3.0.26-1",
"3.0.26-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"3.0.26-2",
"3.0.26-3",
"3.0.26-3ubuntu0.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-3ubuntu0.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"3.6.2-2",
"3.6.2-2ubuntu0.22.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.6.2-2ubuntu0.22.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"3.0.26-6",
"3.0.26-6ubuntu0.24.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-6ubuntu0.24.04.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"3.6.2-2",
"3.6.2-2ubuntu0.24.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.6.2-2ubuntu0.24.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"3.6.2-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.6.2-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"3.0.26-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy",
"purl": "pkg:deb/ubuntu/resteasy?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"3.6.2-3",
"3.6.2-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy-java",
"binary_version": "3.6.2-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "resteasy3.0",
"purl": "pkg:deb/ubuntu/resteasy3.0?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"3.0.26-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89058.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libresteasy3.0-java",
"binary_version": "3.0.26-6"
}
]
}
}
],
"modified": "2026-10-17T13:01:16.340032794Z",
"provider": "osv",
"upstream": [
"CVE-2026-89058"
],
"references": [
"https://ubuntu.com/security/CVE-2026-89058",
"https://www.cve.org/CVERecord?id=CVE-2026-89058",
"https://bugzilla.redhat.com/show_bug.cgi?id=2519775",
"https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3",
"https://redhat.atlassian.net/browse/RESTEASY-3796",
"https://access.redhat.com/security/cve/CVE-2026-89058",
"https://github.com/resteasy/resteasy/commit/efeb2b7"
]
},
"related_cves": [
{
"value": "CVE-2026-89058",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361446,
"published_at": "2026-09-18T08:17:00+00:00"
}