Vulnerability-Lookup

CVE-2026-34236 (GCVE-0-2026-34236)

Vulnerability from cvelistv5 – Published: 2026-04-01 17:04 – Updated: 2026-04-01 17:59

Title

Auth0 PHP SDK Insufficient Entropy in Cookie Encryption

Summary

Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. From version 8.0.0 to before version 8.19.0, in applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies. This issue has been patched in version 8.19.0.

Severity ?

8.2 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CWE

CWE-331 - Insufficient Entropy

Assigner

GitHub_M

References

URL

Tags

	https://github.com/auth0/auth0-PHP/security/advis…	x_refsource_CONFIRM
	https://github.com/auth0/auth0-PHP/releases/tag/8.19.0	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	auth0	auth0-PHP	Affected: >= 8.0.0, < 8.19.0

Show details on NVD website

JSON

To clipboard

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GHSA-W3WC-44P4-M4J7

Vulnerability from github – Published: 2026-04-01 20:29 – Updated: 2026-04-01 20:29

Summary

Auth0 PHP SDK has Insufficient Entropy in Cookie Encryption

Details

Impact

In applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies.

Am I Affected?

Consumers are affected if their application meets the following preconditions: - Their application is using the Auth0-PHP SDK, versions between 8.0.0 and 8.18.0 - Their application is using the Auth0-PHP SDK, or the following SDKs that rely on the Auth0-PHP SDK: - Auth0/symfony, - Auth0/laravel0-auth0, or - Auth0/wordpress

Resolution

Upgrade Auth0/Auth0-PHP to version 8.19.0 or greater.

Severity ?

8.2 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.18.0"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "auth0/auth0-php"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.19.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34236"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-01T20:29:26Z",
    "nvd_published_at": "2026-04-01T18:16:30Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nIn applications built with the Auth0 PHP SDK, cookies are encrypted with insufficient entropy, which may result in threat actors brute-forcing the encryption key and forging session cookies.\n\n### Am I Affected?\nConsumers are affected if their application meets the following preconditions:\n- Their application is using the Auth0-PHP SDK, versions between 8.0.0 and 8.18.0\n- Their application is using the Auth0-PHP SDK, or the following SDKs that rely on the Auth0-PHP SDK:\n    - Auth0/symfony,\n    - Auth0/laravel0-auth0, or\n    - Auth0/wordpress\n\n### Resolution\nUpgrade Auth0/Auth0-PHP to version 8.19.0 or greater.",
  "id": "GHSA-w3wc-44p4-m4j7",
  "modified": "2026-04-01T20:29:43Z",
  "published": "2026-04-01T20:29:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/auth0/auth0-PHP/security/advisories/GHSA-w3wc-44p4-m4j7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34236"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/auth0/auth0-PHP"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/auth0-PHP/releases/tag/8.19.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Auth0 PHP SDK has Insufficient Entropy in Cookie Encryption"
}

FKIE_CVE-2026-34236

Vulnerability from fkie_nvd - Published: 2026-04-01 18:16 - Updated: 2026-04-07 20:20

Severity ?

8.2 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/auth0/auth0-PHP/releases/tag/8.19.0	Product, Release Notes
	security-advisories@github.com	https://github.com/auth0/auth0-PHP/security/advisories/GHSA-w3wc-44p4-m4j7	Vendor Advisory

Impacted products

	Vendor	Product	Version
	auth0	auth0-php	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:auth0:auth0-php:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "8.19.0",
              "versionStartIncluding": "8.0.0",
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            }
          ],
          "negate": false,
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  "cveTags": [],
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      "lang": "en",
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    }
  ],
  "id": "CVE-2026-34236",
  "lastModified": "2026-04-07T20:20:35.920",
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
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        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  "references": [
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      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/auth0/auth0-PHP/releases/tag/8.19.0"
    },
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      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
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      "url": "https://github.com/auth0/auth0-PHP/security/advisories/GHSA-w3wc-44p4-m4j7"
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  "vulnStatus": "Analyzed",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-34236 (GCVE-0-2026-34236)

GHSA-W3WC-44P4-M4J7

Impact

Am I Affected?

Resolution

FKIE_CVE-2026-34236

Tags

Sightings

Nomenclature