CVE-2026-18061

MEDIUMPre-NVD 5.95.9
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
Patch available. Sources: github_release.
generic

CVE-2026-18061 - XML External Entity (XXE) in AWS Advanced JDBC Wrapper RemoteQueryCachePlugin

https://aws.amazon.com/security/security-bulletins/2026-109-aws/
github_release Patch Available

AWS Advanced JDBC Wrapper - v4.3.0

Patch available: aws/aws-advanced-jdbc-wrapper 4.3.0

https://github.com/aws/aws-advanced-jdbc-wrapper/releases/tag/4.3.0

Vendor Advisories for CVE-2026-18061(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 16× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 10:12 UTCEG score recompute
  3. 2026-09-16 14:16 UTCEG score recompute
  4. 2026-09-16 14:07 UTCEPSS rescore
  5. 2026-09-16 10:09 UTCEG score recompute
  6. 2026-09-16 05:14 UTCEPSS rescore
  7. 2026-09-15 12:10 UTCEG score recompute
  8. 2026-09-14 14:12 UTCEG score recompute
  9. 2026-09-13 16:46 UTCEPSS rescore
  10. 2026-09-12 18:16 UTCEG score recompute
  11. 2026-09-12 15:00 UTCEPSS rescore
  12. 2026-09-11 20:18 UTCEG score recompute
  13. 2026-09-11 19:28 UTCEG score recompute
  14. 2026-09-11 17:32 UTCEG score recompute
  15. 2026-09-11 16:39 UTCEG score recompute
  16. 2026-09-11 16:38 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-18061?
CVE-2026-18061 is a medium vulnerability published on September 11, 2026. 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,…
When was CVE-2026-18061 disclosed?
CVE-2026-18061 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18061 actively exploited?
CVE-2026-18061 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.7% of all scored CVEs.
What is the CVSS score of CVE-2026-18061?
CVE-2026-18061 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-18061?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18061, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-18061

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Is Your Infrastructure Affected by CVE-2026-18061?

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