{“lastseen”:””,”description”:”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.”,”published”:”2026-05-04T16:22:48.527Z”,”modified”:”2026-05-04T16:22:48.527Z”,”type”:”cve”,”title”:”Apache Polaris: An authenticated low-privileged user can abuse Polaris staged table creation to mint broad temporary storage credentials for an attacker-chosen location before Polaris validates that location”,”source”:”apache”,”references”:”https:\/\/lists.apache.org\/thread\/8tfsr8y7pgq6rdcvjx95hkcr47td671r”,”id”:”CVE-2026-42809″,”bulletinFamily”:””,”cwe”:[“CWE-862″,”CWE-20″],”cvelist”:null,”sourceData”:”Apache Software Foundation Apache Polaris 0″,”sourceHref”:””,”cvss”:{“score”:9.4,”severity”:”CRITICAL”,”vector”:”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″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”Apache Polaris”,”version”:”0″,”vendor”:”Apache Software Foundation”,”ai_description”:”Apache Polaris vulnerability allowing an authenticated low-privileged user to abuse staged table creation and obtain broad temporary storage credentials for an attacker-chosen location”,”ai_severity”:”Critical”,”ai_vendor”:”Apache Software Foundation”,”ai_product”:”Apache Polaris”,”ai_version”:”0″,”ai_score”:9.4}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”description”:”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…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[9,6,8,131,12,13,7,11,5],"class_list":["post-51246","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-critical","tag-cve","tag-cvss","tag-cvss-94","tag-exploit","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n