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                "id": "CVE-2026-91857",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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              "value": "\u003cp\u003e\u003c/p\u003e\u003cp\u003eAffected versions of MISP expose several state-changing controller actions without restricting them to POST.\u003c/p\u003e\n\u003cp\u003eThe affected actions are:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003ccode\u003e\u2003-\u0026nbsp;EventReportsController::purgeUnusedPictures()\u003c/code\u003e\n\u003cbr\u003e\u003ccode\u003e\u2003-\u0026nbsp;NoticelistsController::enableNoticelist()\u003c/code\u003e\n\u003cbr\u003e\u003ccode\u003e\u2003-\u0026nbsp;ServersController::removeOrphanedCorrelations()\u003c/code\u003e\n\u003cbr\u003e\u003cdiv\u003e\u003ccode\u003e\u2003- WorkflowsController::rebuildRedis()\u003c/code\u003e\u003c/div\u003e\u003cdiv\u003e\u003ccode\u003e\u003cbr\u003e\u003c/code\u003e\u003c/div\u003e\u003cp\u003e\u003ccode\u003e\u003c/code\u003e\u003c/p\u003e\u003cp\u003eThe patch adds \u003ccode\u003eallowMethod([\u0027post\u0027])\u003c/code\u003e to each action, preventing them from being triggered through ordinary GET requests.\u003c/p\u003e\n\u003cp\u003eFor \u003ccode\u003epurgeUnusedPictures()\u003c/code\u003e, the corresponding UI previously used \u003ccode\u003e$.get()\u003c/code\u003e. The fix converts that request to POST and supplies \u003ccode\u003eX-CSRF-Token\u003c/code\u003e, while the controller enables header-only CSRF validation for that AJAX action.\u003c/p\u003e\n\u003cp\u003eBecause GET requests can be induced cross-origin through links, images, redirects, or navigation, accepting GET for these state-changing operations can let an attacker trigger them using the authenticated victim\u0027s session.\u003c/p\u003e\u003cp\u003eVersion affected: \u22642.5.45\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e"
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              "value": "\u003cp\u003eThe vulnerability is remediated by restricting all four state-changing actions to accept only POST requests via the CakePHP allowMethod() guard. Additionally, the client-side JavaScript for purgeUnusedPictures is updated to issue a POST request with the page\u0027s CSRF token in the X-CSRF-Token header, and a beforeFilter() hook is added to EventReportsController to configure header-only CSRF token validation for that specific action, since it is invoked via hand-built AJAX rather than a rendered form.\u003c/p\u003e"
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                  }
                ],
                "cvssRationale": "The vulnerable paths are reachable over the network (AV:N) with no authentication (PR:N) and no user interaction (UI:N). The attack complexity is low (AC:L): an attacker simply sends repeated HTTP requests to the MISP API without an API key or with a key of the wrong length. No attack target is required (AT:N). There is no impact on confidentiality (VC:N, SC:N) or integrity (VI:N, SI:N). The availability impact is high (VA:H) because unbounded log writes can exhaust database storage, degrade query performance, and ultimately make the MISP instance unavailable. No secondary availability impact (SA:N) is evident from the patch.",
                "draft": false,
                "fixSummary": "The fix applies the existing hourly per-key log throttle to the two previously unguarded authentication-failure log writes. The throttle key is now derived from the client\u0027s source IP address rather than from caller-supplied input, preventing an attacker from generating unbounded Redis throttle entries. A per-request memo (stored in Configure::read(\u0027CurrentRequestAuthFailKeys\u0027)) is added to _shouldLog() to prevent duplicate log entries when beforeFilter() executes a second time via CakeErrorController on an exception, ensuring one request produces at most one log entry per key regardless of the operator\u0027s log_each_individual_auth_fail setting.",
                "generatedAt": "2026-09-15T11:37:41.625192Z",
                "generator": "patch2vuln.py",
                "model": "qwen3.8:27b",
                "modelComparison": {
                  "rankings": [
                    {
                      "agreementScore": 9,
                      "assumptionCount": 4,
                      "confidence": "medium",
                      "model": "qwen3.8:27b",
                      "score": 6
                    }
                  ],
                  "selectedModel": "qwen3.8:27b",
                  "selectionMethod": "deterministic-consensus-v1",
                  "selectionNotice": "The selected result is closest to model consensus; this heuristic does not establish factual correctness and human review remains required."
                },
                "patchSha256": "db6f78e69079c91d4ba1dac46c4ed5b8ff1ca617c00cd6733bff926c0925a2e3",
                "patchSummary": "In app/Controller/AppController.php: (1) The \u0027no authkey\u0027 branch in beforeFilter() now calls _shouldLog(\u0027noauthkey:\u0027 . $this-\u003eUser-\u003e_remoteIp()) before writing the log entry. (2) The \u0027incorrect length\u0027 branch in __loginByAuthKey() now calls _shouldLog(\u0027badauthkeylength:\u0027 . $this-\u003eUser-\u003e_remoteIp()) before writing the log entry. (3) _shouldLog() is refactored to first check a per-request memo array (Configure \u0027CurrentRequestAuthFailKeys\u0027) to suppress duplicate logging across the double beforeFilter() invocation, then evaluate the log_each_individual_auth_fail setting, then fall through to the Redis EXISTS/SETEX 3600-second throttle, and finally record the key in the memo. The Redis-unavailable fallback (log everything) is preserved.",
                "patchTruncated": false,
                "patches": [
                  {
                    "commit": "2bf8874336518d8c5ef6a42e51e78900ec242630",
                    "patchSha256": "db6f78e69079c91d4ba1dac46c4ed5b8ff1ca617c00cd6733bff926c0925a2e3",
                    "source": "https://github.com/MISP/MISP/commit/2bf887433.patch",
                    "sourceUrl": "https://github.com/MISP/MISP/commit/2bf887433.patch",
                    "subject": "fix: [logging] Throttle the two unguarded auth_fail writes"
                  }
                ],
                "source": "https://github.com/MISP/MISP/commit/2bf887433.patch",
                "subject": "fix: [logging] Throttle the two unguarded auth_fail writes",
                "tagVersionBoundary": {
                  "commits_after_fix": 188,
                  "repository": "https://github.com/MISP/MISP",
                  "tag": "v2.5.46",
                  "version": "2.5.46",
                  "version_type": "semver"
                },
                "weaknessRationale": [
                  {
                    "cweId": "CWE-770",
                    "rationale": "Two authentication-failure log write paths lacked any rate-limiting or throttling mechanism, allowing an unauthenticated remote attacker to generate an unbounded number of database log entries and exhaust storage or I/O resources. The fix adds the missing hourly per-key throttle."
                  },
                  {
                    "cweId": "CWE-400",
                    "rationale": "The unthrottled log writes constitute uncontrolled consumption of database write capacity and disk storage, enabling a denial-of-service condition. CWE-770 is the more specific primary weakness; CWE-400 captures the broader resource-exhaustion impact."
                  }
                ]
              }
            }
          },
          "recordType": "advisory",
          "vulnId": "GCVE-1-2026-20158"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
    "assignerShortName": "CIRCL",
    "cveId": "CVE-2026-92003",
    "datePublished": "2026-09-15T11:43:19.403Z",
    "dateReserved": "2026-09-15T11:43:17.522Z",
    "dateUpdated": "2026-09-15T12:32:06.515Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}