Vulnerability-Lookup

CVE-2026-42206 (GCVE-0-2026-42206)

Vulnerability from cvelistv5 – Published: 2026-05-08 21:54 – Updated: 2026-05-13 17:47

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.

Severity

5.7 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-13 17:19 UTC

CWE

CWE-345 - Insufficient Verification of Data Authenticity

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/roadiz/core-bundle-dev-app/sec…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
roadiz	core-bundle-dev-app	Affected: < 2.3.43 Affected: >= 2.5.0, < 2.5.45 Affected: >= 2.6.0, < 2.6.31 Affected: >= 2.7.0, < 2.7.18	guessed

Show details on NVD website

JSON

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FKIE_CVE-2026-42206

Vulnerability from fkie_nvd - Published: 2026-05-08 22:16 - Updated: 2026-06-17 10:47

Severity

5.7 (Medium) - 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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/roadiz/core-bundle-dev-app/security/advisories/GHSA-3gx8-q682-38mx

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "vendor": "roadiz",
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GHSA-3GX8-Q682-38MX

Vulnerability from github – Published: 2026-04-29 20:51 – Updated: 2026-05-13 13:38

Summary

OpenID Connect nonce generated but never validated — ID token replay attack

Details

Summary

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.

Details

In src/OAuth2LinkGenerator.php, a nonce is created and sent to the IdP:

'nonce' => $this->tokenGenerator->generateToken(),

However, this value is neither stored in session, cache, nor any other persistent store.

In src/OpenIdJwtConfigurationFactory.php, the JWT validation constraints are: - LooseValidAt (expiry) - PermittedFor (audience) - IssuedBy (issuer) - HostedDomain (optional) - UserInfoEndpoint (optional)

No nonce constraint is present.

In src/Authentication/OpenIdAuthenticator.php, the authenticate() method validates the state CSRF token correctly (fixed in v2.7.10), but never retrieves a stored nonce or compares it against the nonce claim in the ID token.

PoC

Obtain a valid ID token from a legitimate OIDC flow for a target user (e.g. via network interception, browser history leak, or referrer header exposure on a non-HTTPS redirect).
Replay the ID token: Since the nonce in the token is never cross-checked against a client-stored value, the token passes all validation constraints as long as it has not expired.
Result: An attacker can authenticate as the victim within the ID token's validity window.

Additionally, in an authorization code flow with multiple concurrent sessions, a malicious IdP or a compromised token endpoint could inject a token with a mismatched nonce, and the application would accept it silently.

Impact

ID token replay attacks: Valid but intercepted tokens can be reused for authentication within their validity period.
Token injection attacks: A malicious or compromised identity provider can inject tokens across sessions without detection.
Affects any Roadiz application using the roadiz/openid package with OpenID Connect SSO.

The OIDC Core 1.0 specification (Section 3.1.3.7) explicitly requires clients to verify the nonce claim if it was present in the authorization request.

Severity

5.7 (Medium)


                  
                    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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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "roadiz/openid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.7.0"
            },
            {
              "fixed": "2.7.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "roadiz/openid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.0"
            },
            {
              "fixed": "2.6.31"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "roadiz/openid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.5.0"
            },
            {
              "fixed": "2.5.45"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "roadiz/openid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.43"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42206"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-29T20:51:40Z",
    "nvd_published_at": "2026-05-08T22:16:31Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe `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.\n\n### Details\nIn `src/OAuth2LinkGenerator.php`, a nonce is created and sent to the IdP:\n```php\n\u0027nonce\u0027 =\u003e $this-\u003etokenGenerator-\u003egenerateToken(),\n```\nHowever, this value is neither stored in session, cache, nor any other persistent store.\n\nIn `src/OpenIdJwtConfigurationFactory.php`, the JWT validation constraints are:\n- `LooseValidAt` (expiry)\n- `PermittedFor` (audience)\n- `IssuedBy` (issuer)\n- `HostedDomain` (optional)\n- `UserInfoEndpoint` (optional)\n\n**No nonce constraint is present.**\n\nIn `src/Authentication/OpenIdAuthenticator.php`, the `authenticate()` method validates the state CSRF token correctly (fixed in v2.7.10), but never retrieves a stored nonce or compares it against the `nonce` claim in the ID token.\n\n### PoC\n1. Obtain a valid ID token from a legitimate OIDC flow for a target user (e.g. via network interception, browser history leak, or referrer header exposure on a non-HTTPS redirect).\n2. Replay the ID token: Since the nonce in the token is never cross-checked against a client-stored value, the token passes all validation constraints as long as it has not expired.\n3. Result: An attacker can authenticate as the victim within the ID token\u0027s validity window.\n\nAdditionally, in an authorization code flow with multiple concurrent sessions, a malicious IdP or a compromised token endpoint could inject a token with a mismatched nonce, and the application would accept it silently.\n\n### Impact\n- **ID token replay attacks**: Valid but intercepted tokens can be reused for authentication within their validity period.\n- **Token injection attacks**: A malicious or compromised identity provider can inject tokens across sessions without detection.\n- Affects any Roadiz application using the `roadiz/openid` package with OpenID Connect SSO.\n\nThe OIDC Core 1.0 specification (Section 3.1.3.7) explicitly requires clients to verify the `nonce` claim if it was present in the authorization request.",
  "id": "GHSA-3gx8-q682-38mx",
  "modified": "2026-05-13T13:38:01Z",
  "published": "2026-04-29T20:51:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/roadiz/core-bundle-dev-app/security/advisories/GHSA-3gx8-q682-38mx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42206"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/roadiz/core-bundle-dev-app"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenID Connect nonce generated but never validated \u2014 ID token replay attack"
}

Sightings

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CVE-2026-42206 (GCVE-0-2026-42206)

FKIE_CVE-2026-42206

GHSA-3GX8-Q682-38MX

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