Vulnerability-Lookup

CVE-2026-40293 (GCVE-0-2026-40293)

Vulnerability from cvelistv5 – Published: 2026-04-17 20:47 – Updated: 2026-09-09 12:04

Title

OpenFGA Playground Preshared Key Exposure

Summary

OpenFGA is an authorization/permission engine built for developers. In versions 0.1.4 through 1.13.1, when OpenFGA is configured to use preshared-key authentication with the built-in playground enabled, the local server includes the preshared API key in the HTML response of the /playground endpoint. The /playground endpoint is enabled by default and does not require authentication. It is intended for local development and debugging and is not designed to be exposed to production environments. Only those who run OpenFGA with `--authn-method` preshared, with the playground enabled, and with the playground endpoint accessible beyond localhost or trusted networks are vulnerable. To remediate the issue, users should upgrade to OpenFGA v1.14.0, or disable the playground by running `./openfga run --playground-enabled=false.`

Severity

6.5 (Medium)


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

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-20 16:19 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-201 - Insertion of Sensitive Information Into Sent Data

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7984 records in the last 180 days details

References

8 references

URL	Tags
https://github.com/openfga/openfga/security/advis…	x_refsource_CONFIRM
https://github.com/openfga/openfga/releases/tag/v1.14.0	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-40293	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2459341	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24503	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36882	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24539	vendor-advisoryx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version	CPE status
openfga	openfga	Affected: >= 0.1.4, < 1.14.0	guessed
Red Hat	Multicluster Global Hub 1.7.0	Unaffected: 1779925273 , < * (rpm) cpe:/a:redhat:multicluster_globalhub:1.7::el9
Red Hat	Red Hat Advanced Cluster Management for Kubernetes 2.14	Unaffected: 1782693386 , < * (rpm) cpe:/a:redhat:acm:2.14::el9
Red Hat	Red Hat Advanced Cluster Management for Kubernetes 2.15	Unaffected: 1780677003 , < * (rpm) cpe:/a:redhat:acm:2.15::el9
Red Hat	Red Hat Ceph Storage 6	cpe:/a:redhat:ceph_storage:6
Red Hat	Red Hat Ceph Storage 9	cpe:/a:redhat:ceph_storage:9

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CLEANSTART-2026-BW16883 (CVE-2026-40293)

Vulnerability from cleanstart – Published: 2026-10-31 13:33 – Updated: 2026-04-20 05:28 – Source website

Summary

OpenFGA is an authorization/permission engine built for developers

Details

CVE-2026-40293 affects multiple packages. OpenFGA is an authorization/permission engine built for developers. See references for individual vulnerability details.

Severity

6.5 (Medium)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-40293	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-40293	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "grafana",
        "purl": "pkg:apk/cleanstart/grafana"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
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              "fixed": "12.2.8-r3"
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      },
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  "details": "CVE-2026-40293 affects multiple packages. OpenFGA is an authorization/permission engine built for developers. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-BW16883",
  "modified": "2026-04-20T05:28:36Z",
  "published": "2026-10-31T13:33:34.045239Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-BW16883.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-40293"
    },
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      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40293"
    }
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  "schema_version": "1.7.3",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenFGA is an authorization/permission engine built for developers",
  "upstream": [
    "CVE-2026-40293"
  ]
}

CLEANSTART-2026-SH42696 (CVE-2026-40293)

Vulnerability from cleanstart – Published: 2026-10-30 09:41 – Updated: 2026-10-22 09:10 – Source website

Summary

OpenFGA is an authorization/permission engine built for developers

Details

Security vulnerability affects the grafana package. OpenFGA is an authorization/permission engine built for developers.

Severity

6.5 (Medium)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-40293	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-40293	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "grafana",
        "purl": "pkg:apk/cleanstart/grafana"
      },
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          "events": [
            {
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          ],
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  ],
  "credits": [],
  "database_specific": {},
  "details": "Security vulnerability affects the grafana package. OpenFGA is an authorization/permission engine built for developers.",
  "id": "CLEANSTART-2026-SH42696",
  "modified": "2026-10-22T09:10:42Z",
  "published": "2026-10-30T09:41:47.781124Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-SH42696.json"
    },
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      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-40293"
    },
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      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40293"
    }
  ],
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      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenFGA is an authorization/permission engine built for developers",
  "upstream": [
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}

FKIE_CVE-2026-40293

Vulnerability from fkie_nvd - Published: 2026-04-17 21:16 - Updated: 2026-08-24 13:18

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/openfga/openfga/releases/tag/v1.14.0	Product, Release Notes
security-advisories@github.com	https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5	Mitigation, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24503
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:24539
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:36882
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-40293
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2459341
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json

Impacted products

	Vendor	Product	Version
	openfga	openfga	*

JSON

To clipboard

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    }
  ],
  "id": "CVE-2026-40293",
  "lastModified": "2026-08-24T13:18:31.270",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40293",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-20T16:19:32.851531Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-17T21:16:34.567",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "url": "https://github.com/openfga/openfga/releases/tag/v1.14.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:24503"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:24539"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:36882"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/security/cve/CVE-2026-40293"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459341"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40293.json"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-201"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}

GHSA-68M9-983M-F3V5

Vulnerability from github – Published: 2026-04-08 21:51 – Updated: 2026-04-24 20:48

Summary

OpenFGA: Unauthenticated playground endpoint discloses preshared API key in HTML response

Details

Description

When OpenFGA is configured to use preshared-key authentication with the built-in playground enabled, the local server includes the preshared API key in the HTML response of the /playground endpoint. The /playground endpoint is enabled by default and does not require authentication. It is intended for local development and debugging and is not designed to be exposed to production environments.

Am I Affected?

You are affected if you meet each of the following preconditions: * You are running OpenFGA with --authn-method preshared, and * The playground is enabled, and * The playground endpoint is accessible beyond localhost or trusted networks.

Fix

Upgrade to OpenFGA v1.14.0, or disable the playground by running ./openfga run --playground-enabled=false.

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.13.1"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/openfga/openfga"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.1.4"
            },
            {
              "fixed": "1.14.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40293"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-08T21:51:41Z",
    "nvd_published_at": "2026-04-17T21:16:34Z",
    "severity": "MODERATE"
  },
  "details": "### Description\nWhen OpenFGA is configured to use preshared-key authentication with the built-in playground enabled, the local server includes the preshared API key in the HTML response of the /playground endpoint. The /playground endpoint is enabled by default and does not require authentication. It is intended for local development and debugging and is not designed to be exposed to production environments.\n\n\n### Am I Affected?\nYou are affected if you meet each of the following preconditions:\n* You are running OpenFGA with --authn-method preshared, and\n* The playground is enabled, and\n* The playground endpoint is accessible beyond localhost or trusted networks.\n\n### Fix\nUpgrade to OpenFGA v1.14.0, or disable the playground by running `./openfga run --playground-enabled=false.`",
  "id": "GHSA-68m9-983m-f3v5",
  "modified": "2026-04-24T20:48:25Z",
  "published": "2026-04-08T21:51:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openfga/openfga/security/advisories/GHSA-68m9-983m-f3v5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40293"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openfga/openfga"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openfga/openfga/releases/tag/v1.14.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenFGA: Unauthenticated playground endpoint discloses preshared API key in HTML response"
}

RHSA-2026:24503

Vulnerability from csaf_redhat - Published: 2026-06-08 14:02 - Updated: 2026-11-02 18:40

Summary

Red Hat Security Advisory: Multicluster Global Hub 1.7.1 security update

Severity

Important

Scope

12 vulnerabilities in this advisory, including CVE-2026-40293.

CVE-2026-40293

A flaw was found in OpenFGA, an authorization/permission engine. When OpenFGA is configured to use preshared-key authentication and the built-in playground is enabled and accessible beyond localhost or trusted networks, a remote attacker can exploit this vulnerability. The local server includes the preshared API key in the HTML response of the /playground endpoint, leading to information disclosure of the API key. This can allow unauthorized access to the system.

7.5 (High)


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

Fixed: 4 products Known not affected: 17 products

https://access.redhat.com/errata/RHSA-2026:24503

Open the full advisory

RHSA-2026:24539

Vulnerability from csaf_redhat - Published: 2026-06-08 17:49 - Updated: 2026-11-01 05:09

Summary

Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.15.3 security update

Severity

Important

Scope

20 vulnerabilities in this advisory, including CVE-2026-40293.

CVE-2026-40293

7.5 (High)


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

Fixed: 4 products Known not affected: 180 products

https://access.redhat.com/errata/RHSA-2026:24539

Open the full advisory

RHSA-2026:36882

Vulnerability from csaf_redhat - Published: 2026-07-08 21:17 - Updated: 2026-11-03 05:59

Summary

Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.14.3 security update

Severity

Important

Scope

40 vulnerabilities in this advisory, including CVE-2026-40293.

CVE-2026-40293

7.5 (High)


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

Fixed: 4 products Known not affected: 172 products

https://access.redhat.com/errata/RHSA-2026:36882

Open the full advisory

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-40293 (GCVE-0-2026-40293)

CLEANSTART-2026-BW16883 (CVE-2026-40293)

CLEANSTART-2026-SH42696 (CVE-2026-40293)

FKIE_CVE-2026-40293

GHSA-68M9-983M-F3V5

Description

Am I Affected?

Fix

RHSA-2026:24503

RHSA-2026:24539

RHSA-2026:36882

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour