CVE-2026-14265Network attack vector

Code execution via unfiltered cache deserialization

Published Jul 1, 2026 · Updated Jul 1, 2026

Deserialization in AWS Advanced JDBC Wrapper 3.3.0 through 4.0.0 allows remote authenticated users to execute code through a poisoned cache. RemoteQueryCachePlugin passes Redis or Valkey cache entries to ObjectInputStream without class filtering, allowing crafted Java objects to invoke available gadget chains. The plugin is disabled by default, and exploitation requires write access to the shared cache plus an application read of the poisoned result; successful code runs on that application server.

CVSS severity7.7
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in AWS Advanced JDBC Wrapper 3.3.0 through 4.0.0 allows remote authenticated users to execute code through a poisoned cache. RemoteQueryCachePlugin passes Redis or Valkey cache entries to ObjectInputStream without class filtering, allowing crafted Java objects to invoke available gadget chains. The plugin is disabled by default, and exploitation requires write access to the shared cache plus an application read of the poisoned result; successful code runs on that application server.

The record

CVE
CVE-2026-14265
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Amazon Web Services
Product
AWS Advanced JDBC Wrapper
Classifications
CWE-502, CAPEC-586
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.0 <=4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Amazon Web Services · AWS Advanced JDBC Wrapperversion=3.3.0 <=4.0.0

Published CVSS scores

7.7Amazon Web ServicesCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5Amazon Web ServicesCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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