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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache Polaris | unaffected |
|
No data.
No data.
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Project Subscriptions
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No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 04 May 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Mon, 04 May 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | Apache Polaris: staged table creation could vend storage credentials for unvalidated locations |
| Metrics |
ssvc
|
Mon, 04 May 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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- 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. | |
| 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 | |
| Weaknesses | CWE-20 CWE-862 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-05-04T16:38:51.761Z
Reserved: 2026-04-30T13:55:36.799Z
Link: CVE-2026-42809
Vulnrichment
Updated: 2026-05-04T16:38:51.761Z
NVD
Status : Received
Published: 2026-05-04T17:16:26.307
Modified: 2026-05-04T17:16:26.307
Link: CVE-2026-42809
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-05-04T17:30:04Z