CVE-2026-8838 Remote Code Execution via eval() Injection in amazon-redshift-python-driver
A malicious server or man-in-the-middle can execute arbitrary code on the client via unsafe eval() usage in the Amazon Redshift Python driver.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-8838?
CVE-2026-8838 is a critical code injection vulnerability in AWS Amazon Redshift connector for Python, published on 18 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unsafe use of Python's eval() on server-received data in the vector_in() function in amazon-redshift-python-driver before 2.1.14 allows a rogue server or man-in-the-middle actor to execute arbitrary code on the client.
To remediate this issue, users should upgrade to version 2.1.14.
Weakness: CWE-94
Which versions are affected by CVE-2026-8838?
3 open source packages ship an affected version, including redshift-connector.
| Package | Affected | Fixed in |
|---|---|---|
redshift-connector PyPI | All versions | 2.1.14 |
redshift-connector PyPI | All versions | 2.1.14 |
redshift-connector PyPI | All versions | 2.1.14 |
How do I fix CVE-2026-8838?
Upgrade redshift-connector to 2.1.14 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-8838 being exploited?
There is no known exploitation of CVE-2026-8838 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Sources
Also known as CLEANSTART-2026-JT05441, CLEANSTART-2026-LW51175, ECHO-6de6-5ca5-2794, GHSA-29h4-r29x-hchv, MINI-33hh-hmhw-833f, MINI-76wp-jcw2-w3xp and 2 more.