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CVE-2026-8178

Remote Code Execution via Unsafe Class Loading in Amazon Redshift JDBC Driver

9.2 CriticalFix available

An issue exists in Amazon Redshift JDBC Driver versions prior to 2.2.2. Under certain conditions, the driver could load and execute arbitrary classes when processing JDBC connection URL parameters. An actor who can influence the connection URL could potentially execute code in the application context, provided a suitable class is available on the application's classpath.

To mitigate this issue, users should upgrade to version 2.2.2 or later.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.60%Up 0.5 points since May 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.2

Remote Code Execution via Unsafe Class Loading in Amazon Redshift JDBC Driver

An issue exists in Amazon Redshift JDBC Driver versions prior to 2.2.2. Under certain conditions, the driver could load and execute arbitrary classes when processing JDBC connection URL parameters. An actor who can influence the connection URL could potentially execute code in the application context, provided a suitable class is available on the application's classpath.

To mitigate this issue, users should upgrade to version 2.2.2 or later.

Record
CVE-2026-8178
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-470
Updated
2026-11-02
EUVDEUVD-2026-28814 9.2

An issue exists in Amazon Redshift JDBC Driver versions prior to 2.2.2. Under certain conditions, the driver could load and execute arbitrary classes when processing JDBC connection URL parameters. An actor who can influence the connection URL could potentially execute code in the application context, provided a suitable class is available on the application's classpath.

To mitigate this issue, users should upgrade to version 2.2.2 or later.

Record
EUVD-2026-28814
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-wmmv-vvg5-993q 9.2

Amazon Redshift Vulnerable to Remote Code Execution via Unsafe Class Loading

Summary

Amazon Redshift JDBC Driver is a Type 4 JDBC driver that provides database connectivity through the standard JDBC application program interfaces (APIs). An issue exists in versions prior to 2.2.2 where the driver could load arbitrary classes when processing certain connection URL parameters, potentially allowing code execution in the application context.

Impact

When a JDBC connection URL contains certain parameters, the driver processes the parameter values in a way that could trigger the execution of code from classes available on the application's classpath. An actor who can influence the JDBC connection URL could leverage this to execute code in the context of the application's JVM process. Successful exploitation could allow the actor to read sensitive data, modify application state, or disrupt service availability with the privileges of the application process.

Impacted versions: Amazon Redshift JDBC Driver < 2.2.2

Patches

This issue has been addressed in Amazon Redshift JDBC Driver version 2.2.2. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.

References

If you have any questions or comments about this advisory, we ask that you contact AWS Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.

Acknowledgement

We would like to thank Fushuling for collaborating on this issue through the coordinated issue disclosure process.

Record
GHSA-wmmv-vvg5-993q
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-470
Updated
2026-11-02
NVD 9.2

An issue exists in Amazon Redshift JDBC Driver versions prior to 2.2.2. Under certain conditions, the driver could load and execute arbitrary classes when processing JDBC connection URL parameters. An actor who can influence the connection URL could potentially execute code in the application context, provided a suitable class is available on the application's classpath.

To mitigate this issue, users should upgrade to version 2.2.2 or later.

Record
CVE-2026-8178
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-470
Updated
2026-11-02
OSV 9.2

Remote Code Execution via Unsafe Class Loading in Amazon Redshift JDBC Driver

An issue exists in Amazon Redshift JDBC Driver versions prior to 2.2.2. Under certain conditions, the driver could load and execute arbitrary classes when processing JDBC connection URL parameters. An actor who can influence the connection URL could potentially execute code in the application context, provided a suitable class is available on the application's classpath.

To mitigate this issue, users should upgrade to version 2.2.2 or later.

Record
CVE-2026-8178
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-470
Updated
2026-11-02
OSVGHSA-wmmv-vvg5-993q 9.2

Amazon Redshift Vulnerable to Remote Code Execution via Unsafe Class Loading

Summary

Amazon Redshift JDBC Driver is a Type 4 JDBC driver that provides database connectivity through the standard JDBC application program interfaces (APIs). An issue exists in versions prior to 2.2.2 where the driver could load arbitrary classes when processing certain connection URL parameters, potentially allowing code execution in the application context.

Impact

When a JDBC connection URL contains certain parameters, the driver processes the parameter values in a way that could trigger the execution of code from classes available on the application's classpath. An actor who can influence the JDBC connection URL could leverage this to execute code in the context of the application's JVM process. Successful exploitation could allow the actor to read sensitive data, modify application state, or disrupt service availability with the privileges of the application process.

Impacted versions: Amazon Redshift JDBC Driver < 2.2.2

Patches

This issue has been addressed in Amazon Redshift JDBC Driver version 2.2.2. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.

References

If you have any questions or comments about this advisory, we ask that you contact AWS Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.

Acknowledgement

We would like to thank Fushuling for collaborating on this issue through the coordinated issue disclosure process.

Record
GHSA-wmmv-vvg5-993q
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-470
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
com.amazon.redshift:redshift-jdbc42
Maven
 before 2.2.2
2.2.2
com.amazon.redshift:redshift-jdbc42
Maven
 before 2.2.2, plus listed versions
2.0.0.32.0.0.42.0.0.52.0.0.62.0.0.7
Show 36 moreShow less
2.1.0.12.1.0.102.1.0.112.1.0.122.1.0.132.1.0.142.1.0.152.1.0.162.1.0.172.1.0.182.1.0.192.1.0.22.1.0.202.1.0.212.1.0.222.1.0.232.1.0.242.1.0.252.1.0.262.1.0.272.1.0.282.1.0.292.1.0.32.1.0.302.1.0.312.1.0.322.1.0.332.1.0.342.1.0.42.1.0.52.1.0.62.1.0.72.1.0.82.1.0.92.2.02.2.1
2.2.2

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-8178 is a critical vulnerability (CVSS 9.2) in Amazon Redshift Jdbc Driver, published May 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 48th percentile. Fixed in com.amazon.redshift:redshift-jdbc42 2.2.2.

References

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