CVE-2026-112179

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The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report.</p><p>As a result:</p><p>- All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance.</p><p>- When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event.</p><p>This issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization.</p><p>Affected: &lt;2.5.48.</p>"}], "value": "In MISP, the event synchronization process contained a logic error in the preparation of event reports for remote push. 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The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report.\n\nAs a result:\n\n- All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance.\n\n- When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event.\n\nThis issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization.\n\nAffected: <2.5.48.", "supportingMedia": [{"type": "text/html", "value": "<p>In MISP, the event synchronization process contained a logic error in the preparation of event reports for remote push. The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report.</p><p>As a result:</p><p>- All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance.</p><p>- When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event.</p><p>This issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization.</p><p>Affected: &lt;2.5.48.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-10-19T08:53:57.689Z"}}}, "cveMetadata": {"cveId": "CVE-2026-112179", "state": "PUBLISHED", "dateUpdated": "2026-10-19T18:32:29.985Z", "dateReserved": "2026-10-19T08:53:56.176Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-10-19T08:53:57.689Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*"], "modules": ["Event Synchronization"], "product": "MISP", "programFiles": ["app/Model/Event.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.48", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In MISP, the event synchronization process contained a logic error in the preparation of event reports for remote push. The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report.\n\nAs a result:\n\n- All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance.\n\n- When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event.\n\nThis issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization.\n\nAffected: <2.5.48."}], "id": "CVE-2026-112179", "lastModified": "2026-10-19T19:17:25.923", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "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:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "ssvcData": {"options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "Supplier", "timestamp": "2026-10-19T08:52:13Z", "version": "2.0.3"}}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112179", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-19T18:32:17.990508Z", "version": "2.0.3"}}]}, "published": "2026-10-19T09:17:08.457", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/MISP/MISP/commit/0be4564a9"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.48)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MISP", "source": "cna", "vendor": "MISP"}, "product": "misp", "vendor": "misp"}], "created": "2026-10-19T10:45:16.841958+00:00", "updated": "2026-10-19T20:00:04.629812+00:00", "vendors": ["misp", "misp$PRODUCT$misp"]}