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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (52.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Amazon Advanced Jdbc Wrapper
- AWS Advanced Jdbc Wrapper — versions 3.3.0
Weakness classification (CWE)
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.