What is CVE-2026-14265?

CVE-2026-14265 is a high-severity vulnerability in Amazon Advanced Jdbc Wrapper, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-01.

How severe is CVE-2026-14265?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Amazon Advanced Jdbc Wrapper

CVE-2026-14265

Deserialization of untrusted data in the RemoteQueryCachePlugin in Amazon Web Services AWS Advanced JDBC Wrapper 3.3.0 through 4.0.0 might allow an actor with write access to the shared cache infrastructure to execute arbitrary code on application servers that read cached query results via a crafted serialized Java object. The RemoteQueryCachePlugin uses ObjectInputStream without class filtering when deserializing cached query results from Redis or Valkey, enabling gadget chain execution when cache entries are poisoned. We recommend upgrading to AWS Advanced JDBC Wrapper version 4.0.1 or later.

Vulnerability class: Insecure Deserialization

EPSS: 0.004 (34.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amazon Advanced_jdbc_wrapper
Aws Advanced Jdbc Wrapper — versions 3.3.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (Release Notes, patch)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory, Mitigation, Release Notes, Vendor Advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (Mitigation, Vendor Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-14265?: CVE-2026-14265 is a high-severity vulnerability in Amazon Advanced Jdbc Wrapper, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-01.
How severe is CVE-2026-14265?: High severity. CVSS v3 base score is 7.5 out of 10.