Common Weakness Enumeration

CWE-295

Allowed

Improper Certificate Validation

Abstraction: Base · Status: Draft

The product does not validate, or incorrectly validates, a certificate.

1911 vulnerabilities reference this CWE, most recent first.

GHSA-58Q5-M5PM-JWPV

Vulnerability from github – Published: 2022-05-14 02:48 – Updated: 2022-05-14 02:48
VLAI
Details

FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA certificates.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-4680"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-04-05T17:59:00Z",
    "severity": "HIGH"
  },
  "details": "FreeRADIUS 2.2.x before 2.2.8 and 3.0.x before 3.0.9 does not properly check revocation of intermediate CA certificates.",
  "id": "GHSA-58q5-m5pm-jwpv",
  "modified": "2022-05-14T02:48:27Z",
  "published": "2022-05-14T02:48:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-4680"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1234975"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00010.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/132415/FreeRADIUS-Insufficient-CRL-Application.html"
    },
    {
      "type": "WEB",
      "url": "http://www.ocert.org/advisories/ocert-2015-008.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/535810/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/75327"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1032690"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-594F-3595-C47V

Vulnerability from github – Published: 2026-03-18 12:59 – Updated: 2026-03-18 12:59
VLAI
Summary
Terraform Provider for ArgoCD has possible exposure to GO-2026-4337 / CVE-2025-68121
Details

Summary

The terraform-provider-argocd might have been vulnerable to GO-2026-4337 / CVE-2025-68121 ("Unexpected session resumption in crypto/tls").

Details

See https://pkg.go.dev/vuln/GO-2026-4337 for the upstream vulnerability.

Provider versions starting with v7.15.1 are using go 1.25.8 for building and are thus no longer affected.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/argoproj-labs/terraform-provider-argocd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.3-0.20260316182343-b3364f3f32e7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1395",
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-18T12:59:01Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe terraform-provider-argocd might have been vulnerable to GO-2026-4337 / CVE-2025-68121 (\"Unexpected session resumption in crypto/tls\").\n\n### Details\n\nSee https://pkg.go.dev/vuln/GO-2026-4337 for the upstream vulnerability.\n\nProvider versions starting with `v7.15.1` are using `go 1.25.8` for building and are thus no longer affected.",
  "id": "GHSA-594f-3595-c47v",
  "modified": "2026-03-18T12:59:01Z",
  "published": "2026-03-18T12:59:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/argoproj-labs/terraform-provider-argocd/security/advisories/GHSA-594f-3595-c47v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/argoproj-labs/terraform-provider-argocd/commit/b3364f3f32e70f1563c5f3162d370db704430294"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/argoproj-labs/terraform-provider-argocd"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Terraform Provider for ArgoCD has possible exposure to GO-2026-4337 / CVE-2025-68121"
}

GHSA-5957-VGCR-MR9H

Vulnerability from github – Published: 2022-05-17 00:34 – Updated: 2022-05-17 00:34
VLAI
Details

GANMA! App for iOS does not verify SSL certificates.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-7785"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-09-25T21:29:00Z",
    "severity": "MODERATE"
  },
  "details": "GANMA! App for iOS does not verify SSL certificates.",
  "id": "GHSA-5957-vgcr-mr9h",
  "modified": "2022-05-17T00:34:48Z",
  "published": "2022-05-17T00:34:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-7785"
    },
    {
      "type": "WEB",
      "url": "http://jvn.jp/en/jp/JVN44541100/index.html"
    },
    {
      "type": "WEB",
      "url": "http://jvndb.jvn.jp/en/contents/2015/JVNDB-2015-000191.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-59H3-RQ7P-JQMV

Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2025-04-20 03:38
VLAI
Details

A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-2800"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-05-24T14:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certificate validation vulnerabilities, denial of service and possible remote code execution. In order to trigger this vulnerability, the attacker needs to supply a malicious x509 certificate to either a server or a client application using this library.",
  "id": "GHSA-59h3-rq7p-jqmv",
  "modified": "2025-04-20T03:38:12Z",
  "published": "2022-05-13T01:01:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2800"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2017-0293"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/41984"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-59J5-R3PJ-3Q9P

Vulnerability from github – Published: 2024-05-07 21:31 – Updated: 2024-07-03 18:39
VLAI
Details

In TBD of TBD, there is a possible confusion of OEM and DRM certificates due to improperly used crypto. This could lead to local bypass of DRM content protection with no additional execution privileges needed. User interaction is not needed for exploitation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-0042"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295",
      "CWE-843"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-07T21:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In TBD of TBD, there is a possible confusion of OEM and DRM certificates due to improperly used crypto. This could lead to local bypass of DRM content protection with no additional execution privileges needed. User interaction is not needed for exploitation.",
  "id": "GHSA-59j5-r3pj-3q9p",
  "modified": "2024-07-03T18:39:46Z",
  "published": "2024-05-07T21:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0042"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2024-04-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-59PP-9G34-44F9

Vulnerability from github – Published: 2024-04-13 18:30 – Updated: 2024-04-13 18:30
VLAI
Details

A vulnerability classified as critical has been found in cym1102 nginxWebUI up to 3.9.9. This affects the function handlePath of the file /adminPage/conf/saveCmd. The manipulation of the argument nginxPath leads to improper certificate validation. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260577 was assigned to this vulnerability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-3738"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-13T18:15:07Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability classified as critical has been found in cym1102 nginxWebUI up to 3.9.9. This affects the function handlePath of the file /adminPage/conf/saveCmd. The manipulation of the argument nginxPath leads to improper certificate validation. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260577 was assigned to this vulnerability.",
  "id": "GHSA-59pp-9g34-44f9",
  "modified": "2024-04-13T18:30:50Z",
  "published": "2024-04-13T18:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3738"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cym1102/nginxWebUI/issues/138"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cym1102/nginxWebUI/files/14818455/nginxwebui.rce.3.9.9.pdf"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.260577"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.260577"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5CC8-PGP5-7MPM

Vulnerability from github – Published: 2023-06-30 20:30 – Updated: 2023-06-30 20:30
VLAI
Summary
Keycloak Untrusted Certificate Validation vulnerability
Details

A flaw was found in keycloak-core. This flaw considers the scenario when using X509 Client Certificate Authenticatior with the option "Revalidate Client Certificate". A user may be able to choose, if directly connect to keycloak (not passing via reverse proxy) a specific certificate. If there's a configuration error in KC_SPI_TRUSTSTORE_FILE_FILE the authenticator allows even with the "Cannot validate client certificate trust: Truststore not available" message as there's no certificate to trust against.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-1664"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-30T20:30:30Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "A flaw was found in keycloak-core. This flaw considers the scenario when using X509 Client Certificate Authenticatior with the option \"Revalidate Client Certificate\". A user may be able to choose, if directly connect to keycloak (not passing via reverse proxy) a specific certificate. If there\u0027s a configuration error in KC_SPI_TRUSTSTORE_FILE_FILE the authenticator allows even with the \"Cannot validate client certificate trust: Truststore not available\" message as there\u0027s no certificate to trust against.",
  "id": "GHSA-5cc8-pgp5-7mpm",
  "modified": "2023-06-30T20:30:30Z",
  "published": "2023-06-30T20:30:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-5cc8-pgp5-7mpm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1664"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-1664"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2182196\u0026comment#0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "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": "Keycloak Untrusted Certificate Validation vulnerability"
}

GHSA-5CGQ-3RG8-M6CV

Vulnerability from github – Published: 2026-06-25 22:22 – Updated: 2026-07-17 15:32
VLAI
Summary
golang.org/x/crypto vulnerable to auth bypass via unenforced @revoked status
Details

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "golang.org/x/crypto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.52.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42508"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-25T22:22:04Z",
    "nvd_published_at": "2026-05-22T04:16:25Z",
    "severity": "CRITICAL"
  },
  "details": "Previously, a revoked \u0027SignatureKey\u0027 belonging to a CA was not correctly checked for revocation. Now, both the \u0027key\u0027 and \u0027key.SignatureKey\u0027 are checked for @revoked.",
  "id": "GHSA-5cgq-3rg8-m6cv",
  "modified": "2026-07-17T15:32:15Z",
  "published": "2026-06-25T22:22:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42508"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42508.json"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-5021"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/79568"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/781220"
    },
    {
      "type": "PACKAGE",
      "url": "https://cs.opensource.google/go/x/crypto"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480688"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-42508"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:41066"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:41064"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:41036"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:41031"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:41019"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:40945"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:40262"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:40138"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:40118"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:37387"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:37123"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:37072"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:36808"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:36797"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:36796"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:36651"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:36648"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:35833"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26547"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26546"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:23264"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:23262"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "golang.org/x/crypto vulnerable to auth bypass via unenforced @revoked status"
}

GHSA-5F35-PQ34-C87Q

Vulnerability from github – Published: 2023-08-23 18:30 – Updated: 2024-03-06 23:29
VLAI
Summary
Apache Airflow missing Certificate Validation
Details

Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and Apache Airflow before 2.7.0 are affected by the Validation of OpenSSL Certificate vulnerability.

The default SSL context with SSL library did not check a server's X.509 certificate.  Instead, the code accepted any certificate, which could result in the disclosure of mail server credentials or mail contents when the client connects to an attacker in a MITM position.

Users are strongly advised to upgrade to Apache Airflow version 2.7.0 or newer, Apache Airflow IMAP Provider version 3.3.0 or newer, and Apache Airflow SMTP Provider version 1.3.0 or newer to mitigate the risk associated with this vulnerability

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "apache-airflow-providers-smtp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "apache-airflow-providers-imap"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "apache-airflow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-39441"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-24T12:52:22Z",
    "nvd_published_at": "2023-08-23T16:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and\u00a0Apache Airflow before 2.7.0 are affected by the\u00a0Validation of OpenSSL Certificate vulnerability.\n\nThe default SSL context with SSL library did not check a server\u0027s X.509\u00a0certificate.\u00a0 Instead, the code accepted any certificate, which could\u00a0result in the disclosure of mail server credentials or mail contents\u00a0when the client connects to an attacker in a MITM position.\n\nUsers are strongly advised to upgrade to Apache Airflow version 2.7.0 or newer, Apache Airflow IMAP Provider version 3.3.0 or newer, and Apache Airflow SMTP Provider version 1.3.0 or newer to mitigate the risk associated with this vulnerability",
  "id": "GHSA-5f35-pq34-c87q",
  "modified": "2024-03-06T23:29:23Z",
  "published": "2023-08-23T18:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39441"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/33070"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/33075"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/33108"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/commit/38fc9cd823feafd8ec61d5d5c7eddb9e9162f755"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/commit/3bd8f020e8b7bdeb7f618bdbdfb3557f117b29d3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/commit/dbacacbd4d476da757de148a4e747924c34fd7fe"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/airflow"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/xzp4wgjg2b1o6ylk2595df8bstlbo1lb"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/08/23/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Airflow missing Certificate Validation"
}

GHSA-5FGW-RV54-PRJX

Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-05-13 21:32
VLAI
Details

A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-4873"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295",
      "CWE-319"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-13T13:01:55Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability exists where a connection requiring TLS incorrectly reuses an\nexisting unencrypted connection from the same connection pool. If an initial\ntransfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request\nto that same host bypasses the TLS requirement and instead transmit data\nunencrypted.",
  "id": "GHSA-5fgw-rv54-prjx",
  "modified": "2026-05-13T21:32:05Z",
  "published": "2026-05-13T21:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4873"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3621851"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-4873.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-4873.json"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/29/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design Implementation

Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.

Mitigation
Implementation

If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-475: Signature Spoofing by Improper Validation

An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.