CVE-2026-42809

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The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n<br><br>\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued.</span><br>"}], "value": "Apache Polaris can issue broad temporary (\"vended\") storage credentials during\nstaged\ntable creation before the effective table location has been validated or\ndurably reserved. \nThose temporary credentials are meant to limit the scope\nof\naccessible table data and metadata, but this scope limitation becomes\nattacker-\ndirected because the attacker can choose a reachable target location.\n\n\n\nIn the confirmed variant, if the caller supplies a custom `location` during\nstage create and requests credential vending, Apache Polaris uses that location to\nconstruct delegated storage credentials immediately. The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n\n\n\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued."}], "metrics": [{"other": {"content": {"text": "important"}, "type": "Textual description of severity"}}, {"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.4, "baseSeverity": "CRITICAL", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "description": "CWE-862 Missing Authorization", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-05-04T16:36:15.856Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/8tfsr8y7pgq6rdcvjx95hkcr47td671r"}], "source": {"discovery": "INTERNAL"}, "title": "Apache Polaris: staged table creation could vend storage credentials for unvalidated locations", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-04T16:30:34.510659Z", "id": "CVE-2026-42809", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-04T16:30:39.997Z"}}, {"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/02/10"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-04T16:38:51.761Z"}}]}}

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The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n\n\n\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued.", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">Apache Polaris can issue broad temporary (\"vended\") storage credentials during\nstaged\ntable creation before the effective table location has been validated or\ndurably reserved. <br>Those temporary credentials are meant to limit the scope\nof\naccessible table data and metadata, but this scope limitation becomes\nattacker-\ndirected because the attacker can choose a reachable target location.\n<br><br>\nIn the confirmed variant, if the caller supplies a custom `location` during\nstage create and requests credential vending, Apache Polaris uses that location to\nconstruct delegated storage credentials immediately. The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n<br><br>\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued.</span><br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-05-04T16:36:15.856Z"}}}, "cveMetadata": {"cveId": "CVE-2026-42809", "state": "PUBLISHED", "dateUpdated": "2026-05-04T16:38:51.761Z", "dateReserved": "2026-04-30T13:55:36.799Z", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "datePublished": "2026-05-04T16:22:48.527Z", "assignerShortName": "apache"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Apache Polaris", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "1.4.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:polaris:*:*:*:*:*:*:*:*", "matchCriteriaId": "D5093587-E178-48D3-A30B-04433BC6D047", "versionEndExcluding": "1.4.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Apache Polaris can issue broad temporary (\"vended\") storage credentials during\nstaged\ntable creation before the effective table location has been validated or\ndurably reserved. \nThose temporary credentials are meant to limit the scope\nof\naccessible table data and metadata, but this scope limitation becomes\nattacker-\ndirected because the attacker can choose a reachable target location.\n\n\n\nIn the confirmed variant, if the caller supplies a custom `location` during\nstage create and requests credential vending, Apache Polaris uses that location to\nconstruct delegated storage credentials immediately. The stage-create path\nitself neither runs the normal location validation nor the overlap checks\nbefore those credentials are issued.\n\n\n\nClosely related to that, the staged-create flow also accepts\n`write.data.path` / `write.metadata.path` in the request properties and\nfeeds\nthose location overrides into the same effective table location set used for\ncredential vending. Those fields are secondary to the main custom-`location`\nexploit, but they are still attacker-influenced location inputs that should\nbe\nvalidated before any credentials are issued."}, {"lang": "es", "value": "Apache Polaris puede emitir credenciales de almacenamiento temporales amplias (\u2019vendidas\u2019) durante la creaci\u00f3n de tablas por etapas antes de que la ubicaci\u00f3n efectiva de la tabla haya sido validada o reservada de forma duradera. Esas credenciales temporales est\u00e1n destinadas a limitar el alcance de los datos y metadatos de la tabla accesibles, pero esta limitaci\u00f3n de alcance se vuelve dirigida por el atacante porque el atacante puede elegir una ubicaci\u00f3n de destino alcanzable.\n\nEn la variante confirmada, si el llamador proporciona una \u2019location\u2019 personalizada durante la creaci\u00f3n de la etapa y solicita la emisi\u00f3n de credenciales, Apache Polaris utiliza esa ubicaci\u00f3n para construir credenciales de almacenamiento delegadas inmediatamente. La propia ruta de creaci\u00f3n de la etapa no ejecuta la validaci\u00f3n de ubicaci\u00f3n normal ni las comprobaciones de superposici\u00f3n antes de que se emitan esas credenciales.\n\nEstrechamente relacionado con eso, el flujo de creaci\u00f3n por etapas tambi\u00e9n acepta \u2019write.data.path\u2019 / \u2019write.metadata.path\u2019 en las propiedades de la solicitud y alimenta esas anulaciones de ubicaci\u00f3n en el mismo conjunto de ubicaci\u00f3n de tabla efectiva utilizado para la emisi\u00f3n de credenciales. Esos campos son secundarios al exploit principal de \u2019location\u2019 personalizada, pero siguen siendo entradas de ubicaci\u00f3n influenciadas por el atacante que deben validarse antes de que se emitan las credenciales."}], "id": "CVE-2026-42809", "lastModified": "2026-10-26T19:10:00.163", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security@apache.org", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.4, "baseSeverity": "CRITICAL", "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": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@apache.org", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42809", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-04T16:30:34.510659Z", "version": "2.0.3"}}]}, "published": "2026-05-04T17:16:26.307", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/8tfsr8y7pgq6rdcvjx95hkcr47td671r"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/05/02/10"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-862"}], "source": "security@apache.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.4.1)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}]}, "product": "polaris", "vendor": "apache"}], "created": "2026-05-04T17:30:04.677161+00:00", "updated": "2026-05-04T19:44:03.589087+00:00", "vendors": ["apache", "apache$PRODUCT$polaris"]}