Medium
Roadiz OpenID Connect nonce generated but never validated — ID token replay attack
Type: advisorySources: OSV
Roadiz is a polymorphic content management system based on a node system. Prior to versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18, the roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate() and includes it in the authorization request sent to the identity provider, but never stores it and never validates it on the callback. The OpenIdJwtConfigurationFactory validation chain does not include a nonce constraint, and OpenIdAuthenticator::authenticate() never checks the nonce claim in the returned ID token against a stored value. This issue has been patched in versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-42206
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 16:09 UTC · Revision 1
Source evidence
Roadiz OpenID Connect nonce generated but never validated — ID token replay attack
core-osv · Original sourcePublished 8 May 2026, 21:54 UTC
Roadiz is a polymorphic content management system based on a node system. Prior to versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18, the roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate() and includes it in the authorization request sent to the identity provider, but never stores it and never validates it on the callback. The OpenIdJwtConfigurationFactory validation chain does not include a nonce constraint, and OpenIdAuthenticator::authenticate() never checks the nonce claim in the returned ID token against a stored value. This issue has been patched in versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18.
osv:CVE-2026-42206
Complete source record
{
"id": "de391811f22be4b5dfb6232766bde4d46fff8f3c84748697b839e601a12fc693",
"url": "https://osv.dev/vulnerability/CVE-2026-42206",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Roadiz OpenID Connect nonce generated but never validated — ID token replay attack",
"summary": "Roadiz is a polymorphic content management system based on a node system. Prior to versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18, the roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate() and includes it in the authorization request sent to the identity provider, but never stores it and never validates it on the callback. The OpenIdJwtConfigurationFactory validation chain does not include a nonce constraint, and OpenIdAuthenticator::authenticate() never checks the nonce claim in the returned ID token against a stored value. This issue has been patched in versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18.",
"evidence": "osv:CVE-2026-42206",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-42206",
"aliases": [
"CVE-2026-42206",
"GHSA-3gx8-q682-38mx"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P"
}
],
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42206.json"
}
}
],
"modified": "2026-10-28T02:30:30.124584582Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42206.json",
"https://github.com/roadiz/core-bundle-dev-app/security/advisories/GHSA-3gx8-q682-38mx",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42206"
],
"provider_metadata": {
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42206.json"
}
},
"related_cves": [
{
"value": "CVE-2026-42206",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 497156,
"published_at": "2026-05-08T21:54:32.715+00:00"
}