Critical [CVE-2026-42809] Apache Polaris can issue broad temporary ("vended") storage credentials during staged table creation before the effective table…
This critical-severity Apache Software Foundation advisory covers CVE-2026-42809 affecting Apache Polaris.
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Summary
Apache 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-
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.
`write.data.path` / `write.metadata.path` in the request properties feeds
those location overrides into the same effective table location set used for Those fields are secondary to the main custom-`location`
be
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 3 months ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 3 months ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 3 months ago·verify at source
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