CVE-2026-42809 Detail
Awaiting Enrichment
This CVE record has been marked for NVD enrichment efforts. DescriptionApache Polaris can issue broad temporary ("vended") storage credentials during staged table creation before the effective table location has been validated or durably reserved. Those temporary credentials are meant to limit the scope of accessible table data and metadata, but this scope limitation becomes attacker- directed because the attacker can choose a reachable target location. In the confirmed variant, if the caller supplies a custom `location` during stage create and requests credential vending, Apache Polaris uses that location to construct delegated storage credentials immediately. The stage-create path itself neither runs the normal location validation nor the overlap checks before those credentials are issued. Closely related to that, the staged-create flow also accepts `write.data.path` / `write.metadata.path` in the request properties and feeds those location overrides into the same effective table location set used for credential vending. Those fields are secondary to the main custom-`location` exploit, but they are still attacker-influenced location inputs that should be validated before any credentials are issued. Metrics
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CVSS 4.0 Severity and Vector Strings:
CNA: Apache Software Foundation
CVSS-B 9.4 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
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Quick InfoCVE Dictionary Entry:CVE-2026-42809 NVD Published Date: 05/04/2026 NVD Last Modified: 05/05/2026 Source: Apache Software Foundation |
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