CVE-2026-18061: Improper restriction of XML external entity references in the RemoteQueryCachePlugin in AWS Advanced JDBC Wrap

Routine

MEDIUM 5.9WATCHLISTUPGRADE

CVE-2026-18061 is a medium-severity flaw (CVSS 5.9) affecting advanced jdbc wrapper. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-611
Published	2026-09-11
Last modified	2026-09-16

Publisher (CNA): AMZN · Vendor: amazon

Last updated 2026-09-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-11 17:17 UTCPublished CVE record published
2026-09-16 14:03 UTCUpdated Record last modified

amazon advanced jdbc wrapper UPGRADE

Affected: >= 3.3.0 and < 4.3.0

Fixed in: 4.3.0

Safe to downgrade to: a release before 3.3.0

1. Check installed version

apt-cache policy advanced-jdbc-wrapper || rpm -q advanced-jdbc-wrapper || advanced-jdbc-wrapper --version

2. UPGRADE to 4.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advanced-jdbc-wrapper

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advanced-jdbc-wrapper

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.3.0 (Debian / Ubuntu)

apt-cache madison advanced-jdbc-wrapper sudo apt install advanced-jdbc-wrapper=<VERSION_BEFORE_3.3.0> sudo apt-mark hold advanced-jdbc-wrapper

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list advanced-jdbc-wrapper sudo dnf downgrade advanced-jdbc-wrapper-<VERSION_BEFORE_3.3.0> sudo dnf versionlock add advanced-jdbc-wrapper

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Advisories and coverage

Official advisories

AWS Security Bulletins: CVE-2026-18061 - XML External Entity (XXE) in AWS Advanced JDBC Wrapper RemoteQueryCachePlugin 2026-10-25

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-18061?

advanced jdbc wrapper: upgrade to 4.3.0. Exact commands for each OS are on this page.

Is CVE-2026-18061 being exploited?

CVE-2026-18061 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-18061 affect?

CVE-2026-18061 affects advanced jdbc wrapper. Severity is medium (CVSS 5.9). 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

How urgent is CVE-2026-18061?

Priority 36/100. On your watchlist

Software pages

AWS vulnerabilities

Related CVEs

CVE-2026-14265 HIGH 7.5 UPGRADE Deserialization of untrusted data in the RemoteQueryCachePlugin in Amazon Web Services AWS Advanced JDBC Wrapp

References

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