CVE-2026-18061

Improper Restriction of XML External Entity References in AWS Advanced JDBC Wrapper RemoteQueryCachePlugin

MEDIUM
5.9
CVSS Score
Published: September 11, 2026 at 04:33 PM UTC
Updated: September 16, 2026 at 02:17 PM UTC
2 products affected across 2 vendorsAdvanced Jdbc WrapperAWS Advanced JDBC Wrapper

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Improper restriction of XML external entity references in the RemoteQueryCachePlugin in AWS Advanced JDBC Wrapper 3.3.0 through 4.2.0 might allow an actor with write access to the shared cache infrastructure to disclose sensitive files from application hosts that read cached query results, including stored database and IAM role credentials, via crafted XML data in a cached column value. To remediate this issue, users should upgrade to version 4.3.0 or later.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.3.0 ≤ v < 4.3.0
Affected range stops below 4.3.0, so it looks safe — our inference, not a vendor statement
3.3.0 ≤ v ≤ 4.2.03.3.0

References (3)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMAMZN
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-611

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