XXE in AWS Advanced Jdbc Wrapper
CVE-2026-18061
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.
Vulnerability class: XXE (XML External Entity)
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L.
Affected products
Weakness classification (CWE)
References
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (patch)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
- ff89ba41-3aa1-4d27-914a-91399e9639e5 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-18061?
- CVE-2026-18061 is a medium-severity vulnerability in AWS Advanced Jdbc Wrapper, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2026-09-11.
- How severe is CVE-2026-18061?
- Medium severity. CVSS v3 base score is 5.9 out of 10.