CVE-2026-91859

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91859", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-15T09:26:32.260Z", "datePublished": "2026-09-15T09:26:35.198Z", "dateUpdated": "2026-09-15T13:05:17.132Z"}, "containers": {"cna": {"affected": [{"modules": ["app/Model/AccessLog.php"], "product": "MISP", "programFiles": ["app/Model/AccessLog.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.46", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Opus 5 (1M context)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p></p><p>Affected versions of MISP can record incorrect access-log data for requests that terminate in an exception.</p>\n<p>Because <code>CakeErrorController</code> extends <code>AppController</code>, exception rendering runs the application startup path a second time. As a result, <code>__accessMonitor()</code> calls <code>AccessLog::logRequest()</code> twice for one HTTP request. The second deferred writer measures the error-controller execution instead of the original request and can overwrite the row created by the first pass. The corrupted fields include request duration, SQL query count, memory usage, and potentially the recorded query log.</p>\n<p>The bug was masked because the same model instance retained the ID of the first saved row, causing the later save to issue an <code>UPDATE</code> rather than insert an obvious duplicate row.</p><p>Version affected: \u22642.5.45<br></p><p></p>"}], "value": "Affected versions of MISP can record incorrect access-log data for requests that terminate in an exception.\n\n\nBecause CakeErrorController extends AppController, exception rendering runs the application startup path a second time. As a result, __accessMonitor() calls AccessLog::logRequest() twice for one HTTP request. The second deferred writer measures the error-controller execution instead of the original request and can overwrite the row created by the first pass. The corrupted fields include request duration, SQL query count, memory usage, and potentially the recorded query log.\n\n\nThe bug was masked because the same model instance retained the ID of the first saved row, causing the later save to issue an UPDATE rather than insert an obvious duplicate row.\n\nVersion affected: \u22642.5.45"}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.3, "baseSeverity": "MEDIUM", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-778", "description": "CWE-778 Insufficient Logging", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-223", "description": "CWE-223 Omission of Security-relevant Information in Logs", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-15T09:26:35.198Z"}, "references": [{"name": "Security patch", "tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/0dae5c072"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The fix introduces a per-instance boolean guard ($deferredWriterRegistered) in the AccessLog model so that logRequest() returns early on the second beforeFilter pass, preventing the error controller from overwriting the original request's log entry. Additionally, a $this-&gt;create() call is added before $this-&gt;save() in saveOnShutdown() to ensure each save issues an INSERT rather than an UPDATE, providing defense-in-depth against accidental row mutation.</p>"}], "value": "The fix introduces a per-instance boolean guard ($deferredWriterRegistered) in the AccessLog model so that logRequest() returns early on the second beforeFilter pass, preventing the error controller from overwriting the original request's log entry. Additionally, a $this->create() call is added before $this->save() in saveOnShutdown() to ensure each save issues an INSERT rather than an UPDATE, providing defense-in-depth against accidental row mutation."}], "title": "MISP Access Log Entry Overwritten by Error Controller's Second beforeFilter Pass", "x_gcve": [{"extensions": {"bcp-05-x-01": {"ai_annotations": [{"ai_level": "generated", "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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Additionally, a $this->create() call is added before $this->save() in saveOnShutdown() to ensure each save issues an INSERT rather than an UPDATE, providing defense-in-depth against accidental row mutation.", "supportingMedia": [{"type": "text/html", "value": "<p>The fix introduces a per-instance boolean guard ($deferredWriterRegistered) in the AccessLog model so that logRequest() returns early on the second beforeFilter pass, preventing the error controller from overwriting the original request's log entry. Additionally, a $this-&gt;create() call is added before $this-&gt;save() in saveOnShutdown() to ensure each save issues an INSERT rather than an UPDATE, providing defense-in-depth against accidental row mutation.</p>", "base64": false}]}], "references": [{"url": "https://github.com/MISP/MISP/commit/0dae5c072", "name": "Security patch", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "Affected versions of MISP can record incorrect access-log data for requests that terminate in an exception.\n\n\nBecause CakeErrorController extends AppController, exception rendering runs the application startup path a second time. As a result, __accessMonitor() calls AccessLog::logRequest() twice for one HTTP request. The second deferred writer measures the error-controller execution instead of the original request and can overwrite the row created by the first pass. The corrupted fields include request duration, SQL query count, memory usage, and potentially the recorded query log.\n\n\nThe bug was masked because the same model instance retained the ID of the first saved row, causing the later save to issue an UPDATE rather than insert an obvious duplicate row.\n\nVersion affected: \u22642.5.45", "supportingMedia": [{"type": "text/html", "value": "<p></p><p>Affected versions of MISP can record incorrect access-log data for requests that terminate in an exception.</p>\n<p>Because <code>CakeErrorController</code> extends <code>AppController</code>, exception rendering runs the application startup path a second time. As a result, <code>__accessMonitor()</code> calls <code>AccessLog::logRequest()</code> twice for one HTTP request. The second deferred writer measures the error-controller execution instead of the original request and can overwrite the row created by the first pass. The corrupted fields include request duration, SQL query count, memory usage, and potentially the recorded query log.</p>\n<p>The bug was masked because the same model instance retained the ID of the first saved row, causing the later save to issue an <code>UPDATE</code> rather than insert an obvious duplicate row.</p><p>Version affected: \u22642.5.45<br></p><p></p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-778", "description": "CWE-778 Insufficient Logging"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-223", "description": "CWE-223 Omission of Security-relevant Information in Logs"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-15T09:26:35.198Z"}}}, "cveMetadata": {"cveId": "CVE-2026-91859", "state": "PUBLISHED", "dateUpdated": "2026-09-15T13:05:17.132Z", "dateReserved": "2026-09-15T09:26:32.260Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-15T09:26:35.198Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

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{}

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