High
Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication
Type: advisorySources: OSV
Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-100871
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 07:17 UTC · Revision 1
Source evidence
Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication
core-osv · Original sourcePublished 27 Sept 2026, 13:09 UTC
Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.
osv:CVE-2026-100871
Complete source record
{
"id": "1b0c72a8d433fe8848410af29420685e70e2c17f32f85be2c60049db96b63217",
"url": "https://osv.dev/vulnerability/CVE-2026-100871",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 JWT Audience Confusion Allows Admin API Authentication",
"summary": "Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.",
"evidence": "osv:CVE-2026-100871",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-100871",
"aliases": [
"CVE-2026-100871",
"GHSA-f6mx-qxjc-55xf"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/sylius/sylius",
"type": "GIT",
"events": [
{
"introduced": "d8a10279adea6a11039f2aeef37bc2cbc686c971"
},
{
"fixed": "b3561f3fbd6a2b10d8d5bd7532b7cadecadb6fa7"
},
{
"introduced": "c8799bea638c5e4ab07a28f66f628d38d8174b41"
},
{
"fixed": "5c7dbe3788f259abbdd7d62a4f281439c6b85bb1"
},
{
"introduced": "57dcd9e53275a880c77d4ec2c4fad9f567f420be"
},
{
"fixed": "1f9bcfa25348479135b5927b4ecfadfd22f97dc8"
},
{
"introduced": "6dd3ca9895be7ab7e6cb71f37af2ef66af17cbe0"
},
{
"fixed": "439a8f66dbf05f369337dc8358e2698d57aba663"
},
{
"introduced": "7aa47be3a617f75337d73d245352ea700bc8a1ef"
},
{
"fixed": "253169df80a8c8babf479c6de5ce3d422e37dc6a"
},
{
"fixed": "cdfb672a4d174eb2c73159b25cf5b5f44088f45c"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "1.11.0"
},
{
"fixed": "1.12.25"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "1.13.0"
},
{
"fixed": "1.13.17"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "1.14.0"
},
{
"fixed": "1.14.20"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.1.16"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.9"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "cdfb672a4d174eb2c73159b25cf5b5f44088f45c"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "253169df80a8c8babf479c6de5ce3d422e37dc6a"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v2.2.9"
}
]
}
}
],
"versions": [
"v2.2.8",
"v2.2.7",
"v2.2.6",
"v2.1.15",
"v2.2.5",
"v2.1.14",
"v2.2.4",
"v2.1.13",
"v1.14.19",
"v1.13.16",
"v2.2.3",
"v2.1.12",
"v1.14.18",
"v1.13.15",
"v1.14.17",
"v1.13.14",
"v2.2.2",
"v2.1.11",
"v1.14.16",
"v2.2.1",
"v2.1.10",
"v1.14.15",
"v1.13.13",
"v2.2.0",
"v2.1.9",
"v1.14.14",
"v1.13.12",
"v2.1.8",
"v1.14.13",
"v2.1.7",
"v1.14.12",
"v2.1.6",
"v1.14.11",
"v2.1.5",
"v1.14.10",
"v1.14.9",
"v2.1.4",
"v1.14.8",
"v2.1.3",
"v1.14.7",
"v2.1.2",
"v1.14.6",
"v2.1.1",
"v2.1.0",
"v1.14.5",
"v1.14.4",
"v1.14.3",
"v1.13.11",
"v2.0.3",
"v1.14.2",
"v1.13.10",
"v2.0.2",
"v2.0.1",
"v1.14.1",
"v1.13.9",
"v2.0.0",
"v1.14.0",
"v1.13.8",
"v1.13.7",
"v1.13.6",
"v1.13.5",
"v1.13.4",
"v1.13.3",
"v1.13.2",
"v1.13.1",
"v1.13.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100871.json"
}
}
],
"modified": "2026-10-28T02:30:26.664024877Z",
"provider": "osv",
"references": [
"https://packagist.org",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100871.json",
"https://github.com/Sylius/Sylius/releases/tag/v2.2.9",
"https://github.com/Sylius/Sylius/security/advisories/GHSA-f6mx-qxjc-55xf",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100871",
"https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-jwt-audience-confusion-allows-admin-api-authentication",
"https://github.com/Sylius/Sylius/commit/cdfb672a4d174eb2c73159b25cf5b5f44088f45c",
"https://github.com/Sylius/Sylius/pull/19213",
"https://github.com/Sylius/Sylius"
],
"provider_metadata": {
"cwe_ids": [
"CWE-287"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100871.json"
}
},
"related_cves": [
{
"value": "CVE-2026-100871",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 493338,
"published_at": "2026-09-27T13:09:55.386+00:00"
}