CVE-2026-81525

{"id": "CVE-2026-81525", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81525", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-28T15:48:47.805241Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cna@mongodb.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "cna@mongodb.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "cna@mongodb.com", "affectedData": [{"vendor": "MongoDB", "product": "PHP Library", "versions": [{"status": "affected", "version": "0", "lessThan": "1.21.4", "versionType": "semver"}, {"status": "affected", "version": "2.0.0", "lessThan": "2.4.1", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "MongoDB", "product": "PHP Extension", "versions": [{"status": "affected", "version": "0", "lessThan": "1.21.6", "versionType": "semver"}, {"status": "affected", "version": "2.0.0", "lessThan": "2.4.1", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-27T20:18:50.913", "references": [{"url": "https://github.com/mongodb/mongo-php-driver/releases/tag/1.21.6", "tags": ["Product", "Release Notes"], "source": "cna@mongodb.com"}, {"url": "https://github.com/mongodb/mongo-php-driver/releases/tag/2.4.1", "tags": ["Product", "Release Notes"], "source": "cna@mongodb.com"}, {"url": "https://github.com/mongodb/mongo-php-library/releases/tag/1.21.4", "tags": ["Product", "Release Notes"], "source": "cna@mongodb.com"}, {"url": "https://github.com/mongodb/mongo-php-library/releases/tag/2.4.1", "tags": ["Product", "Release Notes"], "source": "cna@mongodb.com"}, {"url": "https://jira.mongodb.org/browse/PHPLIB-1927", "tags": ["Vendor Advisory"], "source": "cna@mongodb.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cna@mongodb.com", "description": [{"lang": "en", "value": "CWE-943"}]}], "descriptions": [{"lang": "en", "value": "The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied namespace identifiers before using them to construct the target namespace for database operations. An application that incorporates untrusted text into these identifiers may have operations silently directed at a different storage location than the one the application intended."}], "lastModified": "2026-09-29T19:17:04.850", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mongodb:php_driver:*:*:*:*:*:mongodb:*:*", "vulnerable": true, "matchCriteriaId": "7119CCA6-A7EB-479D-A8DD-BB113E716270", "versionEndExcluding": "1.21.6"}, {"criteria": "cpe:2.3:a:mongodb:php_driver:*:*:*:*:*:mongodb:*:*", "vulnerable": true, "matchCriteriaId": "31E27BE9-0F03-4575-A410-03D44EC2EB6A", "versionEndExcluding": "2.4.1", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:mongodb:php_library:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "01866C7B-FB73-48D4-BC21-20AEF754D2C5", "versionEndExcluding": "1.21.4"}, {"criteria": "cpe:2.3:a:mongodb:php_library:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9B6C06A6-B674-47E0-8CC0-AE688075AB99", "versionEndExcluding": "2.4.1", "versionStartIncluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "cna@mongodb.com"}