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    2 vulnerabilities found for @hono/oauth-providers by honojs

    CVE-2026-81888 (GCVE-0-2026-81888)

    Vulnerability from nvd – Published: 2026-08-31 20:27 – Updated: 2026-09-01 14:59
    VLAI
    Title
    @hono/oauth-providers: OAuth state check fails open on omitted state, enabling login CSRF and forced account linking
    Summary
    @hono/oauth-providers is Authentication middleware for Hono. Prior to version 0.8.6, the built-in social login providers accept an OAuth callback even when the `state` value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the `state`-based CSRF protection under default usage. Version 0.8.6 has a patch.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-01 14:15 UTC
    CWE
    • CWE-352 - Cross-Site Request Forgery (CSRF)
    • CWE-1275 - Sensitive Cookie with Improper SameSite Attribute
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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              "content": {
                "id": "CVE-2026-81888",
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                  },
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                "timestamp": "2026-09-01T14:15:08.751502Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-01T14:59:01.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "@hono/oauth-providers",
          "vendor": "honojs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.8.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "@hono/oauth-providers is Authentication middleware for Hono. Prior to version 0.8.6, the built-in social login providers accept an OAuth callback even when the `state` value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the `state`-based CSRF protection under default usage. Version 0.8.6 has a patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-31T20:27:33.165Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "name": "https://github.com/honojs/middleware/security/advisories/GHSA-fm3f-ch8h-qw8q",
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          ],
          "url": "https://github.com/honojs/middleware/security/advisories/GHSA-fm3f-ch8h-qw8q"
        },
        {
          "name": "https://github.com/honojs/middleware/pull/2040",
          "tags": [
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          "url": "https://github.com/honojs/middleware/pull/2040"
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        "advisory": "GHSA-fm3f-ch8h-qw8q",
        "discovery": "UNKNOWN"
      },
      "title": "@hono/oauth-providers: OAuth state check fails open on omitted state, enabling login CSRF and forced account linking"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-81888",
    "datePublished": "2026-08-31T20:27:33.165Z",
    "dateReserved": "2026-08-27T17:48:42.123Z",
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    CVE-2026-81888 (GCVE-0-2026-81888)

    Vulnerability from cvelistv5 – Published: 2026-08-31 20:27 – Updated: 2026-09-01 14:59
    VLAI
    Title
    @hono/oauth-providers: OAuth state check fails open on omitted state, enabling login CSRF and forced account linking
    Summary
    @hono/oauth-providers is Authentication middleware for Hono. Prior to version 0.8.6, the built-in social login providers accept an OAuth callback even when the `state` value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the `state`-based CSRF protection under default usage. Version 0.8.6 has a patch.
    Severity
    5.4 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-01 14:15 UTC
    CWE
    • CWE-352 - Cross-Site Request Forgery (CSRF)
    • CWE-1275 - Sensitive Cookie with Improper SameSite Attribute
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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                "id": "CVE-2026-81888",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T14:15:08.751502Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-01T14:59:01.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "@hono/oauth-providers",
          "vendor": "honojs",
          "versions": [
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      ],
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        {
          "lang": "en",
          "value": "@hono/oauth-providers is Authentication middleware for Hono. Prior to version 0.8.6, the built-in social login providers accept an OAuth callback even when the `state` value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the `state`-based CSRF protection under default usage. Version 0.8.6 has a patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
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            "userInteraction": "REQUIRED",
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