Common Weakness Enumeration

CWE-294

Allowed

Authentication Bypass by Capture-replay

Abstraction: Base · Status: Incomplete

A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

396 vulnerabilities reference this CWE, most recent first.

GHSA-CG6C-Q2HX-69H7

Vulnerability from github – Published: 2026-03-26 18:56 – Updated: 2026-04-10 20:18
VLAI
Summary
OpenClaw: Plivo V2 verified replay identity drifts on query-only variants
Details

Summary

Before v2026.3.23, the Plivo V2 verification path treated query-only variants of the same signed request as fresh verified work. Plivo V2 signatures authenticate baseUrl + nonce, but the replay key was derived from the full verification URL including the query string, so unsigned query-only changes minted a new verifiedRequestKey.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected: < 2026.3.23
  • Fixed: >= 2026.3.23
  • Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
  • Latest published npm version checked: 2026.3.23-2

Root Cause

The vulnerable logic lived in extensions/voice-call/src/webhook-security.ts. V2 signature validation already canonicalized to the base URL without query parameters, but the replay key used the full verificationUrl, letting query-only variants bypass replay identity stability.

Fix Commit(s)

  • b0ce53a79cf63834660270513e26d921899b4e5bfix(voice-call): stabilize plivo v2 replay keys

Release Status

The fix commit is contained in released tags v2026.3.23 and v2026.3.23-2. The latest shipped tag and npm release both include the fix.

Code-Level Confirmation

  • extensions/voice-call/src/webhook-security.ts now derives the V2 replay key with createPlivoV2ReplayKey(...), which hashes getBaseUrlNoQuery(url) plus the nonce.
  • extensions/voice-call/src/webhook-security.test.ts contains the regression test treats query-only V2 variants as the same verified request.

Thanks @smaeljaish771 for reporting.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35618"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-26T18:56:32Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Summary\nBefore `v2026.3.23`, the Plivo V2 verification path treated query-only variants of the same signed request as fresh verified work. Plivo V2 signatures authenticate `baseUrl + nonce`, but the replay key was derived from the full verification URL including the query string, so unsigned query-only changes minted a new `verifiedRequestKey`.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: `\u003c 2026.3.23`\n- Fixed: `\u003e= 2026.3.23`\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Root Cause\nThe vulnerable logic lived in `extensions/voice-call/src/webhook-security.ts`. V2 signature validation already canonicalized to the base URL without query parameters, but the replay key used the full `verificationUrl`, letting query-only variants bypass replay identity stability.\n\n## Fix Commit(s)\n- `b0ce53a79cf63834660270513e26d921899b4e5b` \u2014 `fix(voice-call): stabilize plivo v2 replay keys`\n\n## Release Status\nThe fix commit is contained in released tags `v2026.3.23` and `v2026.3.23-2`. The latest shipped tag and npm release both include the fix.\n\n## Code-Level Confirmation\n- `extensions/voice-call/src/webhook-security.ts` now derives the V2 replay key with `createPlivoV2ReplayKey(...)`, which hashes `getBaseUrlNoQuery(url)` plus the nonce.\n- `extensions/voice-call/src/webhook-security.test.ts` contains the regression test `treats query-only V2 variants as the same verified request`.\n\nThanks @smaeljaish771 for reporting.",
  "id": "GHSA-cg6c-q2hx-69h7",
  "modified": "2026-04-10T20:18:52Z",
  "published": "2026-03-26T18:56:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-cg6c-q2hx-69h7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35618"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/b0ce53a79cf63834660270513e26d921899b4e5b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-replay-identity-drift-via-query-only-variants-in-plivo-v2-verification"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Plivo V2 verified replay identity drifts on query-only variants"
}

GHSA-CG99-P6R9-C75P

Vulnerability from github – Published: 2023-06-13 18:30 – Updated: 2024-04-04 04:46
VLAI
Details

GL.iNET GL-AR750S-Ext firmware v3.215 inserts the admin authentication token into a GET request when the OpenVPN Server config file is downloaded. The token is then left in the browser history or access logs, potentially allowing attackers to bypass authentication via session replay.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-33621"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-13T16:15:13Z",
    "severity": "MODERATE"
  },
  "details": "GL.iNET GL-AR750S-Ext firmware v3.215 inserts the admin authentication token into a GET request when the OpenVPN Server config file is downloaded. The token is then left in the browser history or access logs, potentially allowing attackers to bypass authentication via session replay.",
  "id": "GHSA-cg99-p6r9-c75p",
  "modified": "2024-04-04T04:46:46Z",
  "published": "2023-06-13T18:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33621"
    },
    {
      "type": "WEB",
      "url": "https://justinapplegate.me/2023/glinet-CVE-2023-33621"
    },
    {
      "type": "WEB",
      "url": "http://gl-ar750s-ext.com"
    },
    {
      "type": "WEB",
      "url": "http://glinet.com"
    }
  ],
  "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"
    }
  ]
}

GHSA-CGPM-V8PX-PMW8

Vulnerability from github – Published: 2026-05-29 09:31 – Updated: 2026-05-29 15:30
VLAI
Details

Weak authentication in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with read access to the in-vehicle network to recover the user-set unlock PIN by passively observing a single PIN authentication exchange. The Infotainment Digital Round display computes its response using a non-cryptographic operation rather than a cryptographic challenge-response, so the PIN is mathematically derivable from one captured exchange, defeating the motorcycle's primary user-authentication control. Specific protocol details have been withheld pending vendor remediation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-49322"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-29T08:16:19Z",
    "severity": "MODERATE"
  },
  "details": "Weak authentication in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with read access to the in-vehicle network to recover the user-set unlock PIN by passively observing a single PIN authentication exchange. The Infotainment Digital Round display computes its response using a non-cryptographic operation rather than a cryptographic challenge-response, so the PIN is mathematically derivable from one captured exchange, defeating the motorcycle\u0027s primary user-authentication control. Specific protocol details have been withheld pending vendor remediation.",
  "id": "GHSA-cgpm-v8px-pmw8",
  "modified": "2026-05-29T15:30:32Z",
  "published": "2026-05-29T09:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49322"
    },
    {
      "type": "WEB",
      "url": "https://cwe.mitre.org/data/definitions/1390.html"
    },
    {
      "type": "WEB",
      "url": "https://www.asrg.io/security-advisories/cve-2026-49322-indian-scout-infotainment-wcm-weak-authentication"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-CQJC-R43P-WJ4P

Vulnerability from github – Published: 2022-03-25 00:00 – Updated: 2022-04-01 00:00
VLAI
Details

The remote keyless system on Honda Civic 2018 vehicles sends the same RF signal for each door-open request, which allows for a replay attack, a related issue to CVE-2019-20626.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-27254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-23T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The remote keyless system on Honda Civic 2018 vehicles sends the same RF signal for each door-open request, which allows for a replay attack, a related issue to CVE-2019-20626.",
  "id": "GHSA-cqjc-r43p-wj4p",
  "modified": "2022-04-01T00:00:56Z",
  "published": "2022-03-25T00:00:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27254"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1MtmWfBs1r6Y3JN1HpbNsZqO1GcsdgPdc/view?usp=sharing"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HackingIntoYourHeart/Unoriginal-Rice-Patty"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nonamecoder/CVE-2022-27254"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=30804702"
    },
    {
      "type": "WEB",
      "url": "https://www.bleepingcomputer.com/news/security/honda-bug-lets-a-hacker-unlock-and-start-your-car-via-replay-attack"
    },
    {
      "type": "WEB",
      "url": "https://www.theregister.com/2022/03/25/honda_civic_hack"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CR46-5P72-VH72

Vulnerability from github – Published: 2026-08-15 00:31 – Updated: 2026-08-15 00:31
VLAI
Details

Laravel Socialite's Facebook provider contains an authentication bypass vulnerability that allows unauthenticated attackers to replay captured OIDC id_tokens by exploiting the missing nonce claim validation in the getUserByOIDCToken() function within FacebookProvider.php. Attackers who obtain a valid, unexpired id_token issued for the same Facebook App ID can submit the captured token to the backend userFromToken() endpoint, bypassing authentication controls because signature, aud, and iss checks pass while no session-bound nonce comparison is performed, resulting in unauthorized access to victim accounts.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-73683"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-14T22:17:11Z",
    "severity": "CRITICAL"
  },
  "details": "Laravel Socialite\u0027s Facebook provider contains an authentication bypass vulnerability that allows unauthenticated attackers to replay captured OIDC id_tokens by exploiting the missing nonce claim validation in the getUserByOIDCToken() function within FacebookProvider.php. Attackers who obtain a valid, unexpired id_token issued for the same Facebook App ID can submit the captured token to the backend userFromToken() endpoint, bypassing authentication controls because signature, aud, and iss checks pass while no session-bound nonce comparison is performed, resulting in unauthorized access to victim accounts.",
  "id": "GHSA-cr46-5p72-vh72",
  "modified": "2026-08-15T00:31:23Z",
  "published": "2026-08-15T00:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73683"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/socialite/pull/789"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/socialite/commit/caf714f55d51ab0d914b40033d8b0f489d6219cc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/socialite"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/laravel-socialite-facebook-provider-authentication-bypass-via-nonce-replay"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-CR6H-4367-M34R

Vulnerability from github – Published: 2025-09-19 00:30 – Updated: 2025-09-19 00:30
VLAI
Details

Cognex In-Sight Explorer and In-Sight Camera Firmware expose

a proprietary protocol on TCP port 1069 to perform management operations such as modifying system properties. The user management functionality handles sensitive data such as registered usernames and passwords over an unencrypted channel, allowing an adjacent attacker to intercept valid credentials to gain access to the device.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-54810"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T22:15:46Z",
    "severity": "HIGH"
  },
  "details": "Cognex In-Sight Explorer and In-Sight Camera Firmware expose \n\na proprietary protocol on TCP port 1069 to perform management operations\n such as modifying system properties. The user management functionality \nhandles sensitive data such as registered usernames and passwords over \nan unencrypted channel, allowing an adjacent attacker to intercept valid\n credentials to gain access to the device.",
  "id": "GHSA-cr6h-4367-m34r",
  "modified": "2025-09-19T00:30:58Z",
  "published": "2025-09-19T00:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54810"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-261-06"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-CRQF-JJ8W-C292

Vulnerability from github – Published: 2026-07-23 18:31 – Updated: 2026-07-27 18:31
VLAI
Details

Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session’s validity window.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-15614"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-23T16:17:14Z",
    "severity": "HIGH"
  },
  "details": "Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session\u2019s validity window.",
  "id": "GHSA-crqf-jj8w-c292",
  "modified": "2026-07-27T18:31:42Z",
  "published": "2026-07-23T18:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15614"
    },
    {
      "type": "WEB",
      "url": "https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts#L81-L99"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CV4Q-4XGP-CR7M

Vulnerability from github – Published: 2022-05-13 01:34 – Updated: 2025-05-22 18:31
VLAI
Details

Medtronic MMT 508 MiniMed insulin pump, 522 / MMT - 722 Paradigm REAL-TIME, 523 / MMT - 723 Paradigm Revel, 523K / MMT - 723K Paradigm Revel, and 551 / MMT - 751 MiniMed 530G The models identified above, when paired with a remote controller and having the "easy bolus" and "remote bolus" options enabled (non-default), are vulnerable to a capture-replay attack. An attacker can capture the wireless transmissions between the remote controller and the pump and replay them to cause an insulin (bolus) delivery.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-14781"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-13T21:48:00Z",
    "severity": "MODERATE"
  },
  "details": "Medtronic MMT 508 MiniMed insulin pump, 522 / MMT - 722 Paradigm REAL-TIME, 523 / MMT - 723 Paradigm Revel, 523K / MMT - 723K Paradigm Revel, and 551 / MMT - 751 MiniMed 530G The models identified above, when paired with a remote controller and having the \"easy bolus\" and \"remote bolus\" options enabled (non-default), are vulnerable to a capture-replay attack. An attacker can capture the wireless transmissions between the remote controller and the pump and replay them to cause an insulin (bolus) delivery.",
  "id": "GHSA-cv4q-4xgp-cr7m",
  "modified": "2025-05-22T18:31:09Z",
  "published": "2022-05-13T01:34:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14781"
    },
    {
      "type": "WEB",
      "url": "https://global.medtronic.com/xg-en/product-security/security-bulletins/minimed.html"
    },
    {
      "type": "WEB",
      "url": "https://ics-cert.us-cert.gov/advisories/ICSMA-18-219-02"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105044"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CV4X-33M6-3QRQ

Vulnerability from github – Published: 2025-10-09 21:31 – Updated: 2025-10-09 21:31
VLAI
Details

Newforma Info Exchange (NIX) '/RemoteWeb/IntegrationServices.ashx' allows a remote, unauthenticated attacker to cause NIX to make an SMB connection to an attacker-controlled system. The attacker can capture the NTLMv2 hash of the NIX service account.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-35057"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-09T21:15:36Z",
    "severity": "MODERATE"
  },
  "details": "Newforma Info Exchange (NIX) \u0027/RemoteWeb/IntegrationServices.ashx\u0027 allows a remote, unauthenticated attacker to cause NIX to make an SMB connection to an attacker-controlled system. The attacker can capture the NTLMv2 hash of the NIX service account.",
  "id": "GHSA-cv4x-33m6-3qrq",
  "modified": "2025-10-09T21:31:12Z",
  "published": "2025-10-09T21:31:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-35057"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-282-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-35057"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-CW4V-5GCF-X3CW

Vulnerability from github – Published: 2026-08-19 18:32 – Updated: 2026-08-19 18:32
VLAI
Details

Authentication Bypass by Capture-replay in ZenHive mpp allows an unauthenticated third party to obtain paid resources by replaying a transfer settled by an unrelated payer.

MPP.Methods.Tempo normally binds a settled TIP-20 TransferWithMemo to the specific challenge under verification through an attribution nonce carried in the memo. When a static "memo" is configured in method_config, check_matched_memo_binding/3 returns the match unconditionally and that binding is skipped, leaving only token, recipient, amount and the static memo value to match on. The static memo is echoed in every unauthenticated 402 response and Tempo transfers are public, so an attacker can take any matching transfer paid by a legitimate customer, request a fresh challenge for the same route, and present that transaction hash as a type="hash" credential. The hash path performs no sender or signature check tying the presenter to the wallet that broadcast the transfer.

This issue affects mpp: from 0.6.1 before 0.6.4.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-73136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T18:17:25Z",
    "severity": "HIGH"
  },
  "details": "Authentication Bypass by Capture-replay in ZenHive mpp allows an unauthenticated third party to obtain paid resources by replaying a transfer settled by an unrelated payer.\n\nMPP.Methods.Tempo normally binds a settled TIP-20 TransferWithMemo to the specific challenge under verification through an attribution nonce carried in the memo. When a static \"memo\" is configured in method_config, check_matched_memo_binding/3 returns the match unconditionally and that binding is skipped, leaving only token, recipient, amount and the static memo value to match on. The static memo is echoed in every unauthenticated 402 response and Tempo transfers are public, so an attacker can take any matching transfer paid by a legitimate customer, request a fresh challenge for the same route, and present that transaction hash as a type=\"hash\" credential. The hash path performs no sender or signature check tying the presenter to the wallet that broadcast the transfer.\n\nThis issue affects mpp: from 0.6.1 before 0.6.4.",
  "id": "GHSA-cw4v-5gcf-x3cw",
  "modified": "2026-08-19T18:32:54Z",
  "published": "2026-08-19T18:32:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ZenHive/mpp/security/advisories/GHSA-34g7-vx6g-82mq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73136"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ZenHive/mpp/commit/2207d7f456ae14c1d3fcacc6f635bf4f8cee1a34"
    },
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-73136.html"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-73136"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Mitigation
Architecture and Design

Utilize some sequence or time stamping functionality along with a checksum which takes this into account in order to ensure that messages can be parsed only once.

Mitigation
Architecture and Design

Since any attacker who can listen to traffic can see sequence numbers, it is necessary to sign messages with some kind of cryptography to ensure that sequence numbers are not simply doctored along with content.

CAPEC-102: Session Sidejacking

Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.

CAPEC-509: Kerberoasting

Through the exploitation of how service accounts leverage Kerberos authentication with Service Principal Names (SPNs), the adversary obtains and subsequently cracks the hashed credentials of a service account target to exploit its privileges. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. As an authenticated user, the adversary may request Active Directory and obtain a service ticket with portions encrypted via RC4 with the private key of the authenticated account. By extracting the local ticket and saving it disk, the adversary can brute force the hashed value to reveal the target account credentials.

CAPEC-555: Remote Services with Stolen Credentials

This pattern of attack involves an adversary that uses stolen credentials to leverage remote services such as RDP, telnet, SSH, and VNC to log into a system. Once access is gained, any number of malicious activities could be performed.

CAPEC-561: Windows Admin Shares with Stolen Credentials

An adversary guesses or obtains (i.e. steals or purchases) legitimate Windows administrator credentials (e.g. userID/password) to access Windows Admin Shares on a local machine or within a Windows domain.

CAPEC-60: Reusing Session IDs (aka Session Replay)

This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.

CAPEC-644: Use of Captured Hashes (Pass The Hash)

An adversary obtains (i.e. steals or purchases) legitimate Windows domain credential hash values to access systems within the domain that leverage the Lan Man (LM) and/or NT Lan Man (NTLM) authentication protocols.

CAPEC-645: Use of Captured Tickets (Pass The Ticket)

An adversary uses stolen Kerberos tickets to access systems/resources that leverage the Kerberos authentication protocol. The Kerberos authentication protocol centers around a ticketing system which is used to request/grant access to services and to then access the requested services. An adversary can obtain any one of these tickets (e.g. Service Ticket, Ticket Granting Ticket, Silver Ticket, or Golden Ticket) to authenticate to a system/resource without needing the account's credentials. Depending on the ticket obtained, the adversary may be able to access a particular resource or generate TGTs for any account within an Active Directory Domain.

CAPEC-652: Use of Known Kerberos Credentials

An adversary obtains (i.e. steals or purchases) legitimate Kerberos credentials (e.g. Kerberos service account userID/password or Kerberos Tickets) with the goal of achieving authenticated access to additional systems, applications, or services within the domain.

CAPEC-701: Browser in the Middle (BiTM)

An adversary exploits the inherent functionalities of a web browser, in order to establish an unnoticed remote desktop connection in the victim's browser to the adversary's system. The adversary must deploy a web client with a remote desktop session that the victim can access.

CAPEC-94: Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.